Home / 253,232,829.78-379,868,401.99-78,373,549.40

Finding the Fourth Proportional to 253,232,829.78, 379,868,401.99 and 78,373,549.40

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Solution

The fourth proportional to 253,232,829.78, 379,868,401.99 and 78,373,549.40 is: 117,566,253.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,232,829.78 : 379,868,401.99 = 78,373,549.40 : x
  2. Step 2: Convert to fraction form
    253,232,829.78/379,868,401.99 = 78,373,549.40/x
  3. Step 3: Cross multiply
    253,232,829.78x = 379,868,401.99 × 78,373,549.40
  4. Step 4: Simplify right side
    253,232,829.78x = 29,771,634,967,060,944
  5. Step 5: Solve for x
    x = 29,771,634,967,060,944/253,232,829.78
  6. Step 6: Final answer
    x = 117,566,253.13

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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.