Home / 526,358,521.38-726,372,095.28-288,199,378.62

Finding the Fourth Proportional to 526,358,521.38, 726,372,095.28 and 288,199,378.62

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Solution

The fourth proportional to 526,358,521.38, 726,372,095.28 and 288,199,378.62 is: 397,713,683.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,358,521.38 : 726,372,095.28 = 288,199,378.62 : x
  2. Step 2: Convert to fraction form
    526,358,521.38/726,372,095.28 = 288,199,378.62/x
  3. Step 3: Cross multiply
    526,358,521.38x = 726,372,095.28 × 288,199,378.62
  4. Step 4: Simplify right side
    526,358,521.38x = 209,339,986,506,603,424
  5. Step 5: Solve for x
    x = 209,339,986,506,603,424/526,358,521.38
  6. Step 6: Final answer
    x = 397,713,683.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.