Home / 77,921,437.86-116,649,134.65-47,122,808.06

Finding the Fourth Proportional to 77,921,437.86, 116,649,134.65 and 47,122,808.06

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Solution

The fourth proportional to 77,921,437.86, 116,649,134.65 and 47,122,808.06 is: 70,543,292.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,921,437.86 : 116,649,134.65 = 47,122,808.06 : x
  2. Step 2: Convert to fraction form
    77,921,437.86/116,649,134.65 = 47,122,808.06/x
  3. Step 3: Cross multiply
    77,921,437.86x = 116,649,134.65 × 47,122,808.06
  4. Step 4: Simplify right side
    77,921,437.86x = 5,496,834,782,827,572
  5. Step 5: Solve for x
    x = 5,496,834,782,827,572/77,921,437.86
  6. Step 6: Final answer
    x = 70,543,292.50

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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.