Home / 28,049,986,260.75-38,710,197,828.32-15,533,487,828.75

Finding the Fourth Proportional to 28,049,986,260.75, 38,710,197,828.32 and 15,533,487,828.75

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Solution

The fourth proportional to 28,049,986,260.75, 38,710,197,828.32 and 15,533,487,828.75 is: 21,436,887,035.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,049,986,260.75 : 38,710,197,828.32 = 15,533,487,828.75 : x
  2. Step 2: Convert to fraction form
    28,049,986,260.75/38,710,197,828.32 = 15,533,487,828.75/x
  3. Step 3: Cross multiply
    28,049,986,260.75x = 38,710,197,828.32 × 15,533,487,828.75
  4. Step 4: Simplify right side
    28,049,986,260.75x = 601,304,386,814,635,802,624
  5. Step 5: Solve for x
    x = 601,304,386,814,635,802,624/28,049,986,260.75
  6. Step 6: Final answer
    x = 21,436,887,035.34

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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.