Home / 879,962,493.20-1,318,432,085.40-418,907,901.20

Finding the Fourth Proportional to 879,962,493.20, 1,318,432,085.40 and 418,907,901.20

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Solution

The fourth proportional to 879,962,493.20, 1,318,432,085.40 and 418,907,901.20 is: 627,642,225.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,962,493.20 : 1,318,432,085.40 = 418,907,901.20 : x
  2. Step 2: Convert to fraction form
    879,962,493.20/1,318,432,085.40 = 418,907,901.20/x
  3. Step 3: Cross multiply
    879,962,493.20x = 1,318,432,085.40 × 418,907,901.20
  4. Step 4: Simplify right side
    879,962,493.20x = 552,301,617,769,653,184
  5. Step 5: Solve for x
    x = 552,301,617,769,653,184/879,962,493.20
  6. Step 6: Final answer
    x = 627,642,225.71

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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.