Home / 20,689,092,021.80-31,033,638,032.70-19,092,784,975.40

Finding the Fourth Proportional to 20,689,092,021.80, 31,033,638,032.70 and 19,092,784,975.40

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Solution

The fourth proportional to 20,689,092,021.80, 31,033,638,032.70 and 19,092,784,975.40 is: 28,639,177,463.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,092,021.80 : 31,033,638,032.70 = 19,092,784,975.40 : x
  2. Step 2: Convert to fraction form
    20,689,092,021.80/31,033,638,032.70 = 19,092,784,975.40/x
  3. Step 3: Cross multiply
    20,689,092,021.80x = 31,033,638,032.70 × 19,092,784,975.40
  4. Step 4: Simplify right side
    20,689,092,021.80x = 592,518,577,962,736,680,960
  5. Step 5: Solve for x
    x = 592,518,577,962,736,680,960/20,689,092,021.80
  6. Step 6: Final answer
    x = 28,639,177,463.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.