Home / 261,468,032.40-392,202,048.60-89,139,430.80

Finding the Fourth Proportional to 261,468,032.40, 392,202,048.60 and 89,139,430.80

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Solution

The fourth proportional to 261,468,032.40, 392,202,048.60 and 89,139,430.80 is: 133,709,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,468,032.40 : 392,202,048.60 = 89,139,430.80 : x
  2. Step 2: Convert to fraction form
    261,468,032.40/392,202,048.60 = 89,139,430.80/x
  3. Step 3: Cross multiply
    261,468,032.40x = 392,202,048.60 × 89,139,430.80
  4. Step 4: Simplify right side
    261,468,032.40x = 34,960,667,370,797,936
  5. Step 5: Solve for x
    x = 34,960,667,370,797,936/261,468,032.40
  6. Step 6: Final answer
    x = 133,709,146.20

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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.