Home / 42,649,603.20-63,974,404.80-12,358,454.40

Finding the Fourth Proportional to 42,649,603.20, 63,974,404.80 and 12,358,454.40

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Solution

The fourth proportional to 42,649,603.20, 63,974,404.80 and 12,358,454.40 is: 18,537,681.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,649,603.20 : 63,974,404.80 = 12,358,454.40 : x
  2. Step 2: Convert to fraction form
    42,649,603.20/63,974,404.80 = 12,358,454.40/x
  3. Step 3: Cross multiply
    42,649,603.20x = 63,974,404.80 × 12,358,454.40
  4. Step 4: Simplify right side
    42,649,603.20x = 790,624,764,487,941.12
  5. Step 5: Solve for x
    x = 790,624,764,487,941.12/42,649,603.20
  6. Step 6: Final answer
    x = 18,537,681.60

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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.