Home / 20,296,754,689.92-28,009,177,803.84-11,385,892,124.16

Finding the Fourth Proportional to 20,296,754,689.92, 28,009,177,803.84 and 11,385,892,124.16

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Solution

The fourth proportional to 20,296,754,689.92, 28,009,177,803.84 and 11,385,892,124.16 is: 15,712,338,343.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,296,754,689.92 : 28,009,177,803.84 = 11,385,892,124.16 : x
  2. Step 2: Convert to fraction form
    20,296,754,689.92/28,009,177,803.84 = 11,385,892,124.16/x
  3. Step 3: Cross multiply
    20,296,754,689.92x = 28,009,177,803.84 × 11,385,892,124.16
  4. Step 4: Simplify right side
    20,296,754,689.92x = 318,909,476,960,938,950,656
  5. Step 5: Solve for x
    x = 318,909,476,960,938,950,656/20,296,754,689.92
  6. Step 6: Final answer
    x = 15,712,338,343.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.