Home / 718,813,228.18-1,080,115,801.10-387,065,514.20

Finding the Fourth Proportional to 718,813,228.18, 1,080,115,801.10 and 387,065,514.20

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Solution

The fourth proportional to 718,813,228.18, 1,080,115,801.10 and 387,065,514.20 is: 581,619,204.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,813,228.18 : 1,080,115,801.10 = 387,065,514.20 : x
  2. Step 2: Convert to fraction form
    718,813,228.18/1,080,115,801.10 = 387,065,514.20/x
  3. Step 3: Cross multiply
    718,813,228.18x = 1,080,115,801.10 × 387,065,514.20
  4. Step 4: Simplify right side
    718,813,228.18x = 418,075,577,948,316,352
  5. Step 5: Solve for x
    x = 418,075,577,948,316,352/718,813,228.18
  6. Step 6: Final answer
    x = 581,619,204.49

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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.