Home / 12,307,538.10-18,461,307.15-4,219,428.90

Finding the Fourth Proportional to 12,307,538.10, 18,461,307.15 and 4,219,428.90

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Solution

The fourth proportional to 12,307,538.10, 18,461,307.15 and 4,219,428.90 is: 6,329,143.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307,538.10 : 18,461,307.15 = 4,219,428.90 : x
  2. Step 2: Convert to fraction form
    12,307,538.10/18,461,307.15 = 4,219,428.90/x
  3. Step 3: Cross multiply
    12,307,538.10x = 18,461,307.15 × 4,219,428.90
  4. Step 4: Simplify right side
    12,307,538.10x = 77,896,172,920,486.64
  5. Step 5: Solve for x
    x = 77,896,172,920,486.64/12,307,538.10
  6. Step 6: Final answer
    x = 6,329,143.35

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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.