Home / 515,808,001.80-773,712,002.70-413,771,329.80

Finding the Fourth Proportional to 515,808,001.80, 773,712,002.70 and 413,771,329.80

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Solution

The fourth proportional to 515,808,001.80, 773,712,002.70 and 413,771,329.80 is: 620,656,994.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,808,001.80 : 773,712,002.70 = 413,771,329.80 : x
  2. Step 2: Convert to fraction form
    515,808,001.80/773,712,002.70 = 413,771,329.80/x
  3. Step 3: Cross multiply
    515,808,001.80x = 773,712,002.70 × 413,771,329.80
  4. Step 4: Simplify right side
    515,808,001.80x = 320,139,844,239,400,192
  5. Step 5: Solve for x
    x = 320,139,844,239,400,192/515,808,001.80
  6. Step 6: Final answer
    x = 620,656,994.70

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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.