Home / 8,321,870.40-12,482,805.60-5,116,603.20

Finding the Fourth Proportional to 8,321,870.40, 12,482,805.60 and 5,116,603.20

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Solution

The fourth proportional to 8,321,870.40, 12,482,805.60 and 5,116,603.20 is: 7,674,904.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,870.40 : 12,482,805.60 = 5,116,603.20 : x
  2. Step 2: Convert to fraction form
    8,321,870.40/12,482,805.60 = 5,116,603.20/x
  3. Step 3: Cross multiply
    8,321,870.40x = 12,482,805.60 × 5,116,603.20
  4. Step 4: Simplify right side
    8,321,870.40x = 63,869,563,077,937.92
  5. Step 5: Solve for x
    x = 63,869,563,077,937.92/8,321,870.40
  6. Step 6: Final answer
    x = 7,674,904.80

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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.