Home / 139,521,764.90-209,282,647.35-42,476,701.70

Finding the Fourth Proportional to 139,521,764.90, 209,282,647.35 and 42,476,701.70

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Solution

The fourth proportional to 139,521,764.90, 209,282,647.35 and 42,476,701.70 is: 63,715,052.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,521,764.90 : 209,282,647.35 = 42,476,701.70 : x
  2. Step 2: Convert to fraction form
    139,521,764.90/209,282,647.35 = 42,476,701.70/x
  3. Step 3: Cross multiply
    139,521,764.90x = 209,282,647.35 × 42,476,701.70
  4. Step 4: Simplify right side
    139,521,764.90x = 8,889,636,582,472,246
  5. Step 5: Solve for x
    x = 8,889,636,582,472,246/139,521,764.90
  6. Step 6: Final answer
    x = 63,715,052.55

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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.