Home / 78,895,390.70-118,144,020.45-62,970,142.70

Finding the Fourth Proportional to 78,895,390.70, 118,144,020.45 and 62,970,142.70

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Solution

The fourth proportional to 78,895,390.70, 118,144,020.45 and 62,970,142.70 is: 94,296,330.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,895,390.70 : 118,144,020.45 = 62,970,142.70 : x
  2. Step 2: Convert to fraction form
    78,895,390.70/118,144,020.45 = 62,970,142.70/x
  3. Step 3: Cross multiply
    78,895,390.70x = 118,144,020.45 × 62,970,142.70
  4. Step 4: Simplify right side
    78,895,390.70x = 7,439,545,826,888,219
  5. Step 5: Solve for x
    x = 7,439,545,826,888,219/78,895,390.70
  6. Step 6: Final answer
    x = 94,296,330.38

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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.