Home / 386,712,243.20-580,068,364.80-369,918,707.60

Finding the Fourth Proportional to 386,712,243.20, 580,068,364.80 and 369,918,707.60

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Solution

The fourth proportional to 386,712,243.20, 580,068,364.80 and 369,918,707.60 is: 554,878,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,712,243.20 : 580,068,364.80 = 369,918,707.60 : x
  2. Step 2: Convert to fraction form
    386,712,243.20/580,068,364.80 = 369,918,707.60/x
  3. Step 3: Cross multiply
    386,712,243.20x = 580,068,364.80 × 369,918,707.60
  4. Step 4: Simplify right side
    386,712,243.20x = 214,578,139,826,461,344
  5. Step 5: Solve for x
    x = 214,578,139,826,461,344/386,712,243.20
  6. Step 6: Final answer
    x = 554,878,061.40

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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.