Home / 61,931,379.90-92,894,117.40-20,986,803.30

Finding the Fourth Proportional to 61,931,379.90, 92,894,117.40 and 20,986,803.30

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Solution

The fourth proportional to 61,931,379.90, 92,894,117.40 and 20,986,803.30 is: 31,479,204.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,931,379.90 : 92,894,117.40 = 20,986,803.30 : x
  2. Step 2: Convert to fraction form
    61,931,379.90/92,894,117.40 = 20,986,803.30/x
  3. Step 3: Cross multiply
    61,931,379.90x = 92,894,117.40 × 20,986,803.30
  4. Step 4: Simplify right side
    61,931,379.90x = 1,949,550,569,600,907.50
  5. Step 5: Solve for x
    x = 1,949,550,569,600,907.50/61,931,379.90
  6. Step 6: Final answer
    x = 31,479,204.45

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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.