Home / 284,523,620.66-392,642,994.93-154,143,428.66

Finding the Fourth Proportional to 284,523,620.66, 392,642,994.93 and 154,143,428.66

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Solution

The fourth proportional to 284,523,620.66, 392,642,994.93 and 154,143,428.66 is: 212,718,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,523,620.66 : 392,642,994.93 = 154,143,428.66 : x
  2. Step 2: Convert to fraction form
    284,523,620.66/392,642,994.93 = 154,143,428.66/x
  3. Step 3: Cross multiply
    284,523,620.66x = 392,642,994.93 × 154,143,428.66
  4. Step 4: Simplify right side
    284,523,620.66x = 60,523,337,477,841,200
  5. Step 5: Solve for x
    x = 60,523,337,477,841,200/284,523,620.66
  6. Step 6: Final answer
    x = 212,718,147.40

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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.