Home / 472,393,075.70-708,589,613.55-429,310,925.30

Finding the Fourth Proportional to 472,393,075.70, 708,589,613.55 and 429,310,925.30

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Solution

The fourth proportional to 472,393,075.70, 708,589,613.55 and 429,310,925.30 is: 643,966,387.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,075.70 : 708,589,613.55 = 429,310,925.30 : x
  2. Step 2: Convert to fraction form
    472,393,075.70/708,589,613.55 = 429,310,925.30/x
  3. Step 3: Cross multiply
    472,393,075.70x = 708,589,613.55 × 429,310,925.30
  4. Step 4: Simplify right side
    472,393,075.70x = 304,205,262,651,119,936
  5. Step 5: Solve for x
    x = 304,205,262,651,119,936/472,393,075.70
  6. Step 6: Final answer
    x = 643,966,387.95

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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.