Home / 21,459,643.20-32,189,464.80-14,657,198.40

Finding the Fourth Proportional to 21,459,643.20, 32,189,464.80 and 14,657,198.40

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Solution

The fourth proportional to 21,459,643.20, 32,189,464.80 and 14,657,198.40 is: 21,985,797.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,459,643.20 : 32,189,464.80 = 14,657,198.40 : x
  2. Step 2: Convert to fraction form
    21,459,643.20/32,189,464.80 = 14,657,198.40/x
  3. Step 3: Cross multiply
    21,459,643.20x = 32,189,464.80 × 14,657,198.40
  4. Step 4: Simplify right side
    21,459,643.20x = 471,807,371,963,416.31
  5. Step 5: Solve for x
    x = 471,807,371,963,416.31/21,459,643.20
  6. Step 6: Final answer
    x = 21,985,797.60

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Similar ratio
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1.5x scale

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.