Home / 784,404,837.60-1,176,607,256.40-478,294,821.60

Finding the Fourth Proportional to 784,404,837.60, 1,176,607,256.40 and 478,294,821.60

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Solution

The fourth proportional to 784,404,837.60, 1,176,607,256.40 and 478,294,821.60 is: 717,442,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,404,837.60 : 1,176,607,256.40 = 478,294,821.60 : x
  2. Step 2: Convert to fraction form
    784,404,837.60/1,176,607,256.40 = 478,294,821.60/x
  3. Step 3: Cross multiply
    784,404,837.60x = 1,176,607,256.40 × 478,294,821.60
  4. Step 4: Simplify right side
    784,404,837.60x = 562,765,157,793,103,552
  5. Step 5: Solve for x
    x = 562,765,157,793,103,552/784,404,837.60
  6. Step 6: Final answer
    x = 717,442,232.40

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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.