Home / 86,938,729.70-130,408,094.55-56,327,728.10

Finding the Fourth Proportional to 86,938,729.70, 130,408,094.55 and 56,327,728.10

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Solution

The fourth proportional to 86,938,729.70, 130,408,094.55 and 56,327,728.10 is: 84,491,592.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,938,729.70 : 130,408,094.55 = 56,327,728.10 : x
  2. Step 2: Convert to fraction form
    86,938,729.70/130,408,094.55 = 56,327,728.10/x
  3. Step 3: Cross multiply
    86,938,729.70x = 130,408,094.55 × 56,327,728.10
  4. Step 4: Simplify right side
    86,938,729.70x = 7,345,591,691,851,492
  5. Step 5: Solve for x
    x = 7,345,591,691,851,492/86,938,729.70
  6. Step 6: Final answer
    x = 84,491,592.15

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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.