Home / 78,894,138.30-118,341,207.45-64,545,231.30

Finding the Fourth Proportional to 78,894,138.30, 118,341,207.45 and 64,545,231.30

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Solution

The fourth proportional to 78,894,138.30, 118,341,207.45 and 64,545,231.30 is: 96,817,846.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,894,138.30 : 118,341,207.45 = 64,545,231.30 : x
  2. Step 2: Convert to fraction form
    78,894,138.30/118,341,207.45 = 64,545,231.30/x
  3. Step 3: Cross multiply
    78,894,138.30x = 118,341,207.45 × 64,545,231.30
  4. Step 4: Simplify right side
    78,894,138.30x = 7,638,360,607,181,533
  5. Step 5: Solve for x
    x = 7,638,360,607,181,533/78,894,138.30
  6. Step 6: Final answer
    x = 96,817,846.95

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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.