Home / 77,779,262.92-107,336,508.90-42,972,754.60

Finding the Fourth Proportional to 77,779,262.92, 107,336,508.90 and 42,972,754.60

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Solution

The fourth proportional to 77,779,262.92, 107,336,508.90 and 42,972,754.60 is: 59,303,023.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,779,262.92 : 107,336,508.90 = 42,972,754.60 : x
  2. Step 2: Convert to fraction form
    77,779,262.92/107,336,508.90 = 42,972,754.60/x
  3. Step 3: Cross multiply
    77,779,262.92x = 107,336,508.90 × 42,972,754.60
  4. Step 4: Simplify right side
    77,779,262.92x = 4,612,545,456,580,416
  5. Step 5: Solve for x
    x = 4,612,545,456,580,416/77,779,262.92
  6. Step 6: Final answer
    x = 59,303,023.50

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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.