Home / 211,252,685.78-316,655,380.58-71,059,681.76

Finding the Fourth Proportional to 211,252,685.78, 316,655,380.58 and 71,059,681.76

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Solution

The fourth proportional to 211,252,685.78, 316,655,380.58 and 71,059,681.76 is: 106,514,293.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,252,685.78 : 316,655,380.58 = 71,059,681.76 : x
  2. Step 2: Convert to fraction form
    211,252,685.78/316,655,380.58 = 71,059,681.76/x
  3. Step 3: Cross multiply
    211,252,685.78x = 316,655,380.58 × 71,059,681.76
  4. Step 4: Simplify right side
    211,252,685.78x = 22,501,430,570,067,264
  5. Step 5: Solve for x
    x = 22,501,430,570,067,264/211,252,685.78
  6. Step 6: Final answer
    x = 106,514,293.47

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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.