Home / 637,120,359.28-879,270,285.17-386,235,325.94

Finding the Fourth Proportional to 637,120,359.28, 879,270,285.17 and 386,235,325.94

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Solution

The fourth proportional to 637,120,359.28, 879,270,285.17 and 386,235,325.94 is: 533,031,538.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,120,359.28 : 879,270,285.17 = 386,235,325.94 : x
  2. Step 2: Convert to fraction form
    637,120,359.28/879,270,285.17 = 386,235,325.94/x
  3. Step 3: Cross multiply
    637,120,359.28x = 879,270,285.17 × 386,235,325.94
  4. Step 4: Simplify right side
    637,120,359.28x = 339,605,245,182,258,688
  5. Step 5: Solve for x
    x = 339,605,245,182,258,688/637,120,359.28
  6. Step 6: Final answer
    x = 533,031,538.29

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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.