Home / 138,996,120.48-208,549,096.32-52,757,417.94

Finding the Fourth Proportional to 138,996,120.48, 208,549,096.32 and 52,757,417.94

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Solution

The fourth proportional to 138,996,120.48, 208,549,096.32 and 52,757,417.94 is: 79,156,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,996,120.48 : 208,549,096.32 = 52,757,417.94 : x
  2. Step 2: Convert to fraction form
    138,996,120.48/208,549,096.32 = 52,757,417.94/x
  3. Step 3: Cross multiply
    138,996,120.48x = 208,549,096.32 × 52,757,417.94
  4. Step 4: Simplify right side
    138,996,120.48x = 11,002,511,835,563,556
  5. Step 5: Solve for x
    x = 11,002,511,835,563,556/138,996,120.48
  6. Step 6: Final answer
    x = 79,156,970.70

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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.