Home / 77,549,801.49-107,024,879.21-42,748,682.85

Finding the Fourth Proportional to 77,549,801.49, 107,024,879.21 and 42,748,682.85

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Solution

The fourth proportional to 77,549,801.49, 107,024,879.21 and 42,748,682.85 is: 58,996,574.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,549,801.49 : 107,024,879.21 = 42,748,682.85 : x
  2. Step 2: Convert to fraction form
    77,549,801.49/107,024,879.21 = 42,748,682.85/x
  3. Step 3: Cross multiply
    77,549,801.49x = 107,024,879.21 × 42,748,682.85
  4. Step 4: Simplify right side
    77,549,801.49x = 4,575,172,618,194,105
  5. Step 5: Solve for x
    x = 4,575,172,618,194,105/77,549,801.49
  6. Step 6: Final answer
    x = 58,996,574.21

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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.