Home / 28,426,496,902.95-39,229,791,544.02-15,739,233,689.85

Finding the Fourth Proportional to 28,426,496,902.95, 39,229,791,544.02 and 15,739,233,689.85

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Solution

The fourth proportional to 28,426,496,902.95, 39,229,791,544.02 and 15,739,233,689.85 is: 21,720,821,205.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,426,496,902.95 : 39,229,791,544.02 = 15,739,233,689.85 : x
  2. Step 2: Convert to fraction form
    28,426,496,902.95/39,229,791,544.02 = 15,739,233,689.85/x
  3. Step 3: Cross multiply
    28,426,496,902.95x = 39,229,791,544.02 × 15,739,233,689.85
  4. Step 4: Simplify right side
    28,426,496,902.95x = 617,446,856,715,432,230,912
  5. Step 5: Solve for x
    x = 617,446,856,715,432,230,912/28,426,496,902.95
  6. Step 6: Final answer
    x = 21,720,821,205.07

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Double scale
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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.