Home / 99,290,781.60-148,936,172.40-48,272,445.60

Finding the Fourth Proportional to 99,290,781.60, 148,936,172.40 and 48,272,445.60

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Solution

The fourth proportional to 99,290,781.60, 148,936,172.40 and 48,272,445.60 is: 72,408,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,290,781.60 : 148,936,172.40 = 48,272,445.60 : x
  2. Step 2: Convert to fraction form
    99,290,781.60/148,936,172.40 = 48,272,445.60/x
  3. Step 3: Cross multiply
    99,290,781.60x = 148,936,172.40 × 48,272,445.60
  4. Step 4: Simplify right side
    99,290,781.60x = 7,189,513,280,051,222
  5. Step 5: Solve for x
    x = 7,189,513,280,051,222/99,290,781.60
  6. Step 6: Final answer
    x = 72,408,668.40

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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.