Home / 1,511,041,123.55-2,085,391,916.12-908,406,844.67

Finding the Fourth Proportional to 1,511,041,123.55, 2,085,391,916.12 and 908,406,844.67

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Solution

The fourth proportional to 1,511,041,123.55, 2,085,391,916.12 and 908,406,844.67 is: 1,253,694,728.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,041,123.55 : 2,085,391,916.12 = 908,406,844.67 : x
  2. Step 2: Convert to fraction form
    1,511,041,123.55/2,085,391,916.12 = 908,406,844.67/x
  3. Step 3: Cross multiply
    1,511,041,123.55x = 2,085,391,916.12 × 908,406,844.67
  4. Step 4: Simplify right side
    1,511,041,123.55x = 1,894,384,290,422,894,336
  5. Step 5: Solve for x
    x = 1,894,384,290,422,894,336/1,511,041,123.55
  6. Step 6: Final answer
    x = 1,253,694,728.02

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Double scale
Find fourth proportional to 1,511,041,124.55, 2,085,391,917.50 and 908,406,845.67
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.