Home / 156,988,187.64-216,639,875.43-86,423,224.32

Finding the Fourth Proportional to 156,988,187.64, 216,639,875.43 and 86,423,224.32

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Solution

The fourth proportional to 156,988,187.64, 216,639,875.43 and 86,423,224.32 is: 119,261,944.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,988,187.64 : 216,639,875.43 = 86,423,224.32 : x
  2. Step 2: Convert to fraction form
    156,988,187.64/216,639,875.43 = 86,423,224.32/x
  3. Step 3: Cross multiply
    156,988,187.64x = 216,639,875.43 × 86,423,224.32
  4. Step 4: Simplify right side
    156,988,187.64x = 18,722,716,550,943,744
  5. Step 5: Solve for x
    x = 18,722,716,550,943,744/156,988,187.64
  6. Step 6: Final answer
    x = 119,261,944.69

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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.