Home / 725,376,031.20-1,088,064,046.80-435,138,386.40

Finding the Fourth Proportional to 725,376,031.20, 1,088,064,046.80 and 435,138,386.40

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Solution

The fourth proportional to 725,376,031.20, 1,088,064,046.80 and 435,138,386.40 is: 652,707,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,376,031.20 : 1,088,064,046.80 = 435,138,386.40 : x
  2. Step 2: Convert to fraction form
    725,376,031.20/1,088,064,046.80 = 435,138,386.40/x
  3. Step 3: Cross multiply
    725,376,031.20x = 1,088,064,046.80 × 435,138,386.40
  4. Step 4: Simplify right side
    725,376,031.20x = 473,458,433,624,406,016
  5. Step 5: Solve for x
    x = 473,458,433,624,406,016/725,376,031.20
  6. Step 6: Final answer
    x = 652,707,579.60

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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.