Home / 679,945,877.93-1,020,126,966.42-348,187,784.90

Finding the Fourth Proportional to 679,945,877.93, 1,020,126,966.42 and 348,187,784.90

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Solution

The fourth proportional to 679,945,877.93, 1,020,126,966.42 and 348,187,784.90 is: 522,388,266.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,945,877.93 : 1,020,126,966.42 = 348,187,784.90 : x
  2. Step 2: Convert to fraction form
    679,945,877.93/1,020,126,966.42 = 348,187,784.90/x
  3. Step 3: Cross multiply
    679,945,877.93x = 1,020,126,966.42 × 348,187,784.90
  4. Step 4: Simplify right side
    679,945,877.93x = 355,195,748,749,435,840
  5. Step 5: Solve for x
    x = 355,195,748,749,435,840/679,945,877.93
  6. Step 6: Final answer
    x = 522,388,266.89

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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.