Home / 78,894,007.90-118,341,011.85-51,684,228.70

Finding the Fourth Proportional to 78,894,007.90, 118,341,011.85 and 51,684,228.70

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Solution

The fourth proportional to 78,894,007.90, 118,341,011.85 and 51,684,228.70 is: 77,526,343.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,894,007.90 : 118,341,011.85 = 51,684,228.70 : x
  2. Step 2: Convert to fraction form
    78,894,007.90/118,341,011.85 = 51,684,228.70/x
  3. Step 3: Cross multiply
    78,894,007.90x = 118,341,011.85 × 51,684,228.70
  4. Step 4: Simplify right side
    78,894,007.90x = 6,116,363,921,044,810
  5. Step 5: Solve for x
    x = 6,116,363,921,044,810/78,894,007.90
  6. Step 6: Final answer
    x = 77,526,343.05

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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.