Home / 72,767,643.60-109,151,465.40-63,809,691.60

Finding the Fourth Proportional to 72,767,643.60, 109,151,465.40 and 63,809,691.60

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Solution

The fourth proportional to 72,767,643.60, 109,151,465.40 and 63,809,691.60 is: 95,714,537.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,767,643.60 : 109,151,465.40 = 63,809,691.60 : x
  2. Step 2: Convert to fraction form
    72,767,643.60/109,151,465.40 = 63,809,691.60/x
  3. Step 3: Cross multiply
    72,767,643.60x = 109,151,465.40 × 63,809,691.60
  4. Step 4: Simplify right side
    72,767,643.60x = 6,964,921,344,862,071
  5. Step 5: Solve for x
    x = 6,964,921,344,862,071/72,767,643.60
  6. Step 6: Final answer
    x = 95,714,537.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.