Home / 791,172,042.40-1,186,758,063.60-518,701,002.40

Finding the Fourth Proportional to 791,172,042.40, 1,186,758,063.60 and 518,701,002.40

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Solution

The fourth proportional to 791,172,042.40, 1,186,758,063.60 and 518,701,002.40 is: 778,051,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,172,042.40 : 1,186,758,063.60 = 518,701,002.40 : x
  2. Step 2: Convert to fraction form
    791,172,042.40/1,186,758,063.60 = 518,701,002.40/x
  3. Step 3: Cross multiply
    791,172,042.40x = 1,186,758,063.60 × 518,701,002.40
  4. Step 4: Simplify right side
    791,172,042.40x = 615,572,597,195,602,816
  5. Step 5: Solve for x
    x = 615,572,597,195,602,816/791,172,042.40
  6. Step 6: Final answer
    x = 778,051,503.60

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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.