Home / 258,748,729.20-387,931,658.40-122,274,680.40

Finding the Fourth Proportional to 258,748,729.20, 387,931,658.40 and 122,274,680.40

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Solution

The fourth proportional to 258,748,729.20, 387,931,658.40 and 122,274,680.40 is: 183,321,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,748,729.20 : 387,931,658.40 = 122,274,680.40 : x
  2. Step 2: Convert to fraction form
    258,748,729.20/387,931,658.40 = 122,274,680.40/x
  3. Step 3: Cross multiply
    258,748,729.20x = 387,931,658.40 × 122,274,680.40
  4. Step 4: Simplify right side
    258,748,729.20x = 47,434,219,547,901,976
  5. Step 5: Solve for x
    x = 47,434,219,547,901,976/258,748,729.20
  6. Step 6: Final answer
    x = 183,321,555.61

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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.