Home / 28,612,952,581.64-39,485,152,875.15-15,752,464,151.13

Finding the Fourth Proportional to 28,612,952,581.64, 39,485,152,875.15 and 15,752,464,151.13

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Solution

The fourth proportional to 28,612,952,581.64, 39,485,152,875.15 and 15,752,464,151.13 is: 21,738,003,213.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,612,952,581.64 : 39,485,152,875.15 = 15,752,464,151.13 : x
  2. Step 2: Convert to fraction form
    28,612,952,581.64/39,485,152,875.15 = 15,752,464,151.13/x
  3. Step 3: Cross multiply
    28,612,952,581.64x = 39,485,152,875.15 × 15,752,464,151.13
  4. Step 4: Simplify right side
    28,612,952,581.64x = 621,988,455,167,688,048,640
  5. Step 5: Solve for x
    x = 621,988,455,167,688,048,640/28,612,952,581.64
  6. Step 6: Final answer
    x = 21,738,003,213.51

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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.