Home / 487,152,793.29-730,692,443.37-155,146,386.21

Finding the Fourth Proportional to 487,152,793.29, 730,692,443.37 and 155,146,386.21

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Solution

The fourth proportional to 487,152,793.29, 730,692,443.37 and 155,146,386.21 is: 232,707,876.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,152,793.29 : 730,692,443.37 = 155,146,386.21 : x
  2. Step 2: Convert to fraction form
    487,152,793.29/730,692,443.37 = 155,146,386.21/x
  3. Step 3: Cross multiply
    487,152,793.29x = 730,692,443.37 × 155,146,386.21
  4. Step 4: Simplify right side
    487,152,793.29x = 113,364,292,019,810,576
  5. Step 5: Solve for x
    x = 113,364,292,019,810,576/487,152,793.29
  6. Step 6: Final answer
    x = 232,707,876.42

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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.