Home / 156,565,940.72-216,048,397.88-90,490,718.64

Finding the Fourth Proportional to 156,565,940.72, 216,048,397.88 and 90,490,718.64

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Solution

The fourth proportional to 156,565,940.72, 216,048,397.88 and 90,490,718.64 is: 124,869,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,565,940.72 : 216,048,397.88 = 90,490,718.64 : x
  2. Step 2: Convert to fraction form
    156,565,940.72/216,048,397.88 = 90,490,718.64/x
  3. Step 3: Cross multiply
    156,565,940.72x = 216,048,397.88 × 90,490,718.64
  4. Step 4: Simplify right side
    156,565,940.72x = 19,550,374,785,181,852
  5. Step 5: Solve for x
    x = 19,550,374,785,181,852/156,565,940.72
  6. Step 6: Final answer
    x = 124,869,909.10

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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.