Home / 103,630,397.20-155,545,128.60-52,570,070.80

Finding the Fourth Proportional to 103,630,397.20, 155,545,128.60 and 52,570,070.80

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Solution

The fourth proportional to 103,630,397.20, 155,545,128.60 and 52,570,070.80 is: 78,905,597.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,630,397.20 : 155,545,128.60 = 52,570,070.80 : x
  2. Step 2: Convert to fraction form
    103,630,397.20/155,545,128.60 = 52,570,070.80/x
  3. Step 3: Cross multiply
    103,630,397.20x = 155,545,128.60 × 52,570,070.80
  4. Step 4: Simplify right side
    103,630,397.20x = 8,177,018,423,097,104
  5. Step 5: Solve for x
    x = 8,177,018,423,097,104/103,630,397.20
  6. Step 6: Final answer
    x = 78,905,597.62

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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.