Home / 625,208,016.28-862,778,921.81-357,280,800.30

Finding the Fourth Proportional to 625,208,016.28, 862,778,921.81 and 357,280,800.30

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Solution

The fourth proportional to 625,208,016.28, 862,778,921.81 and 357,280,800.30 is: 493,042,852.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,208,016.28 : 862,778,921.81 = 357,280,800.30 : x
  2. Step 2: Convert to fraction form
    625,208,016.28/862,778,921.81 = 357,280,800.30/x
  3. Step 3: Cross multiply
    625,208,016.28x = 862,778,921.81 × 357,280,800.30
  4. Step 4: Simplify right side
    625,208,016.28x = 308,254,343,666,247,936
  5. Step 5: Solve for x
    x = 308,254,343,666,247,936/625,208,016.28
  6. Step 6: Final answer
    x = 493,042,852.36

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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.