Home / 399,766,296.12-551,678,970.06-232,542,681.72

Finding the Fourth Proportional to 399,766,296.12, 551,678,970.06 and 232,542,681.72

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Solution

The fourth proportional to 399,766,296.12, 551,678,970.06 and 232,542,681.72 is: 320,909,762.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,766,296.12 : 551,678,970.06 = 232,542,681.72 : x
  2. Step 2: Convert to fraction form
    399,766,296.12/551,678,970.06 = 232,542,681.72/x
  3. Step 3: Cross multiply
    399,766,296.12x = 551,678,970.06 × 232,542,681.72
  4. Step 4: Simplify right side
    399,766,296.12x = 128,288,907,146,279,968
  5. Step 5: Solve for x
    x = 128,288,907,146,279,968/399,766,296.12
  6. Step 6: Final answer
    x = 320,909,762.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.