Home / 689,476,952.40-1,034,215,428.60-553,428,056.40

Finding the Fourth Proportional to 689,476,952.40, 1,034,215,428.60 and 553,428,056.40

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Solution

The fourth proportional to 689,476,952.40, 1,034,215,428.60 and 553,428,056.40 is: 830,142,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,476,952.40 : 1,034,215,428.60 = 553,428,056.40 : x
  2. Step 2: Convert to fraction form
    689,476,952.40/1,034,215,428.60 = 553,428,056.40/x
  3. Step 3: Cross multiply
    689,476,952.40x = 1,034,215,428.60 × 553,428,056.40
  4. Step 4: Simplify right side
    689,476,952.40x = 572,363,834,548,990,976
  5. Step 5: Solve for x
    x = 572,363,834,548,990,976/689,476,952.40
  6. Step 6: Final answer
    x = 830,142,084.60

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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.