Home / 12,012,557.40-18,018,836.10-9,745,075.80

Finding the Fourth Proportional to 12,012,557.40, 18,018,836.10 and 9,745,075.80

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Solution

The fourth proportional to 12,012,557.40, 18,018,836.10 and 9,745,075.80 is: 14,617,613.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012,557.40 : 18,018,836.10 = 9,745,075.80 : x
  2. Step 2: Convert to fraction form
    12,012,557.40/18,018,836.10 = 9,745,075.80/x
  3. Step 3: Cross multiply
    12,012,557.40x = 18,018,836.10 × 9,745,075.80
  4. Step 4: Simplify right side
    12,012,557.40x = 175,594,923,622,276.41
  5. Step 5: Solve for x
    x = 175,594,923,622,276.41/12,012,557.40
  6. Step 6: Final answer
    x = 14,617,613.70

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Double scale
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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.