Home / 719,566,335.72-993,001,876.02-389,541,475.08

Finding the Fourth Proportional to 719,566,335.72, 993,001,876.02 and 389,541,475.08

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Solution

The fourth proportional to 719,566,335.72, 993,001,876.02 and 389,541,475.08 is: 537,567,415.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,566,335.72 : 993,001,876.02 = 389,541,475.08 : x
  2. Step 2: Convert to fraction form
    719,566,335.72/993,001,876.02 = 389,541,475.08/x
  3. Step 3: Cross multiply
    719,566,335.72x = 993,001,876.02 × 389,541,475.08
  4. Step 4: Simplify right side
    719,566,335.72x = 386,815,415,542,038,080
  5. Step 5: Solve for x
    x = 386,815,415,542,038,080/719,566,335.72
  6. Step 6: Final answer
    x = 537,567,415.73

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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.