Home / 2,988,045,390.15-4,482,068,085.23-917,763,830.55

Finding the Fourth Proportional to 2,988,045,390.15, 4,482,068,085.23 and 917,763,830.55

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Solution

The fourth proportional to 2,988,045,390.15, 4,482,068,085.23 and 917,763,830.55 is: 1,376,645,745.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988,045,390.15 : 4,482,068,085.23 = 917,763,830.55 : x
  2. Step 2: Convert to fraction form
    2,988,045,390.15/4,482,068,085.23 = 917,763,830.55/x
  3. Step 3: Cross multiply
    2,988,045,390.15x = 4,482,068,085.23 × 917,763,830.55
  4. Step 4: Simplify right side
    2,988,045,390.15x = 4,113,479,974,681,999,872
  5. Step 5: Solve for x
    x = 4,113,479,974,681,999,872/2,988,045,390.15
  6. Step 6: Final answer
    x = 1,376,645,745.83

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Double scale
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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.