Home / 445,834,871.40-668,752,307.10-187,235,680.80

Finding the Fourth Proportional to 445,834,871.40, 668,752,307.10 and 187,235,680.80

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Solution

The fourth proportional to 445,834,871.40, 668,752,307.10 and 187,235,680.80 is: 280,853,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,834,871.40 : 668,752,307.10 = 187,235,680.80 : x
  2. Step 2: Convert to fraction form
    445,834,871.40/668,752,307.10 = 187,235,680.80/x
  3. Step 3: Cross multiply
    445,834,871.40x = 668,752,307.10 × 187,235,680.80
  4. Step 4: Simplify right side
    445,834,871.40x = 125,214,293,506,439,184
  5. Step 5: Solve for x
    x = 125,214,293,506,439,184/445,834,871.40
  6. Step 6: Final answer
    x = 280,853,521.20

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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.