Home / 121,936,798.66-168,145,585.94-72,367,595.52

Finding the Fourth Proportional to 121,936,798.66, 168,145,585.94 and 72,367,595.52

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Solution

The fourth proportional to 121,936,798.66, 168,145,585.94 and 72,367,595.52 is: 99,791,792.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,936,798.66 : 168,145,585.94 = 72,367,595.52 : x
  2. Step 2: Convert to fraction form
    121,936,798.66/168,145,585.94 = 72,367,595.52/x
  3. Step 3: Cross multiply
    121,936,798.66x = 168,145,585.94 × 72,367,595.52
  4. Step 4: Simplify right side
    121,936,798.66x = 12,168,291,751,779,318
  5. Step 5: Solve for x
    x = 12,168,291,751,779,318/121,936,798.66
  6. Step 6: Final answer
    x = 99,791,792.84

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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.