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Finding the Fourth Proportional to 625,295,293.68, 862,904,741.04 and 357,366,656.28

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Solution

The fourth proportional to 625,295,293.68, 862,904,741.04 and 357,366,656.28 is: 493,164,405.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,295,293.68 : 862,904,741.04 = 357,366,656.28 : x
  2. Step 2: Convert to fraction form
    625,295,293.68/862,904,741.04 = 357,366,656.28/x
  3. Step 3: Cross multiply
    625,295,293.68x = 862,904,741.04 × 357,366,656.28
  4. Step 4: Simplify right side
    625,295,293.68x = 308,373,381,993,624,064
  5. Step 5: Solve for x
    x = 308,373,381,993,624,064/625,295,293.68
  6. Step 6: Final answer
    x = 493,164,405.86

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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.