Home / 434,423,246.40-651,634,869.60-386,806,132.80

Finding the Fourth Proportional to 434,423,246.40, 651,634,869.60 and 386,806,132.80

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Solution

The fourth proportional to 434,423,246.40, 651,634,869.60 and 386,806,132.80 is: 580,209,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,423,246.40 : 651,634,869.60 = 386,806,132.80 : x
  2. Step 2: Convert to fraction form
    434,423,246.40/651,634,869.60 = 386,806,132.80/x
  3. Step 3: Cross multiply
    434,423,246.40x = 651,634,869.60 × 386,806,132.80
  4. Step 4: Simplify right side
    434,423,246.40x = 252,056,363,907,608,288
  5. Step 5: Solve for x
    x = 252,056,363,907,608,288/434,423,246.40
  6. Step 6: Final answer
    x = 580,209,199.20

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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.