Home / 640,038,233.60-960,057,350.40-433,413,972.80

Finding the Fourth Proportional to 640,038,233.60, 960,057,350.40 and 433,413,972.80

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Solution

The fourth proportional to 640,038,233.60, 960,057,350.40 and 433,413,972.80 is: 650,120,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,038,233.60 : 960,057,350.40 = 433,413,972.80 : x
  2. Step 2: Convert to fraction form
    640,038,233.60/960,057,350.40 = 433,413,972.80/x
  3. Step 3: Cross multiply
    640,038,233.60x = 960,057,350.40 × 433,413,972.80
  4. Step 4: Simplify right side
    640,038,233.60x = 416,102,270,352,705,664
  5. Step 5: Solve for x
    x = 416,102,270,352,705,664/640,038,233.60
  6. Step 6: Final answer
    x = 650,120,959.20

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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.