Home / 78,463,865.60-117,695,798.40-35,353,721.60

Finding the Fourth Proportional to 78,463,865.60, 117,695,798.40 and 35,353,721.60

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Solution

The fourth proportional to 78,463,865.60, 117,695,798.40 and 35,353,721.60 is: 53,030,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,463,865.60 : 117,695,798.40 = 35,353,721.60 : x
  2. Step 2: Convert to fraction form
    78,463,865.60/117,695,798.40 = 35,353,721.60/x
  3. Step 3: Cross multiply
    78,463,865.60x = 117,695,798.40 × 35,353,721.60
  4. Step 4: Simplify right side
    78,463,865.60x = 4,160,984,490,123,326
  5. Step 5: Solve for x
    x = 4,160,984,490,123,326/78,463,865.60
  6. Step 6: Final answer
    x = 53,030,582.40

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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.