Home / 386,781,079.20-580,003,657.20-127,896,266.40

Finding the Fourth Proportional to 386,781,079.20, 580,003,657.20 and 127,896,266.40

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Solution

The fourth proportional to 386,781,079.20, 580,003,657.20 and 127,896,266.40 is: 191,788,860.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,781,079.20 : 580,003,657.20 = 127,896,266.40 : x
  2. Step 2: Convert to fraction form
    386,781,079.20/580,003,657.20 = 127,896,266.40/x
  3. Step 3: Cross multiply
    386,781,079.20x = 580,003,657.20 × 127,896,266.40
  4. Step 4: Simplify right side
    386,781,079.20x = 74,180,302,254,225,488
  5. Step 5: Solve for x
    x = 74,180,302,254,225,488/386,781,079.20
  6. Step 6: Final answer
    x = 191,788,860.01

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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.