Home / 423,155,004.30-634,732,506.45-392,544,002.70

Finding the Fourth Proportional to 423,155,004.30, 634,732,506.45 and 392,544,002.70

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Solution

The fourth proportional to 423,155,004.30, 634,732,506.45 and 392,544,002.70 is: 588,816,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,155,004.30 : 634,732,506.45 = 392,544,002.70 : x
  2. Step 2: Convert to fraction form
    423,155,004.30/634,732,506.45 = 392,544,002.70/x
  3. Step 3: Cross multiply
    423,155,004.30x = 634,732,506.45 × 392,544,002.70
  4. Step 4: Simplify right side
    423,155,004.30x = 249,160,438,725,686,592
  5. Step 5: Solve for x
    x = 249,160,438,725,686,592/423,155,004.30
  6. Step 6: Final answer
    x = 588,816,004.05

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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.