Home / 434,589,428.80-651,884,143.20-143,501,478.40

Finding the Fourth Proportional to 434,589,428.80, 651,884,143.20 and 143,501,478.40

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Solution

The fourth proportional to 434,589,428.80, 651,884,143.20 and 143,501,478.40 is: 215,252,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,589,428.80 : 651,884,143.20 = 143,501,478.40 : x
  2. Step 2: Convert to fraction form
    434,589,428.80/651,884,143.20 = 143,501,478.40/x
  3. Step 3: Cross multiply
    434,589,428.80x = 651,884,143.20 × 143,501,478.40
  4. Step 4: Simplify right side
    434,589,428.80x = 93,546,338,294,717,312
  5. Step 5: Solve for x
    x = 93,546,338,294,717,312/434,589,428.80
  6. Step 6: Final answer
    x = 215,252,217.60

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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.