Home / 885,718,386.30-1,328,577,579.45-516,874,712.70

Finding the Fourth Proportional to 885,718,386.30, 1,328,577,579.45 and 516,874,712.70

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Solution

The fourth proportional to 885,718,386.30, 1,328,577,579.45 and 516,874,712.70 is: 775,312,069.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,718,386.30 : 1,328,577,579.45 = 516,874,712.70 : x
  2. Step 2: Convert to fraction form
    885,718,386.30/1,328,577,579.45 = 516,874,712.70/x
  3. Step 3: Cross multiply
    885,718,386.30x = 1,328,577,579.45 × 516,874,712.70
  4. Step 4: Simplify right side
    885,718,386.30x = 686,708,154,677,880,192
  5. Step 5: Solve for x
    x = 686,708,154,677,880,192/885,718,386.30
  6. Step 6: Final answer
    x = 775,312,069.05

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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.