Home / 399,178,889.10-598,768,333.65-140,392,053.90

Finding the Fourth Proportional to 399,178,889.10, 598,768,333.65 and 140,392,053.90

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Solution

The fourth proportional to 399,178,889.10, 598,768,333.65 and 140,392,053.90 is: 210,588,080.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,178,889.10 : 598,768,333.65 = 140,392,053.90 : x
  2. Step 2: Convert to fraction form
    399,178,889.10/598,768,333.65 = 140,392,053.90/x
  3. Step 3: Cross multiply
    399,178,889.10x = 598,768,333.65 × 140,392,053.90
  4. Step 4: Simplify right side
    399,178,889.10x = 84,062,316,171,403,984
  5. Step 5: Solve for x
    x = 84,062,316,171,403,984/399,178,889.10
  6. Step 6: Final answer
    x = 210,588,080.85

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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.