Home / 342,143,999.60-513,215,999.40-307,506,585.20

Finding the Fourth Proportional to 342,143,999.60, 513,215,999.40 and 307,506,585.20

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Solution

The fourth proportional to 342,143,999.60, 513,215,999.40 and 307,506,585.20 is: 461,259,877.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,143,999.60 : 513,215,999.40 = 307,506,585.20 : x
  2. Step 2: Convert to fraction form
    342,143,999.60/513,215,999.40 = 307,506,585.20/x
  3. Step 3: Cross multiply
    342,143,999.60x = 513,215,999.40 × 307,506,585.20
  4. Step 4: Simplify right side
    342,143,999.60x = 157,817,299,445,499,232
  5. Step 5: Solve for x
    x = 157,817,299,445,499,232/342,143,999.60
  6. Step 6: Final answer
    x = 461,259,877.80

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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.