Home / 66,428,273.60-99,642,410.40-65,756,427.20

Finding the Fourth Proportional to 66,428,273.60, 99,642,410.40 and 65,756,427.20

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Solution

The fourth proportional to 66,428,273.60, 99,642,410.40 and 65,756,427.20 is: 98,634,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,273.60 : 99,642,410.40 = 65,756,427.20 : x
  2. Step 2: Convert to fraction form
    66,428,273.60/99,642,410.40 = 65,756,427.20/x
  3. Step 3: Cross multiply
    66,428,273.60x = 99,642,410.40 × 65,756,427.20
  4. Step 4: Simplify right side
    66,428,273.60x = 6,552,128,905,500,124
  5. Step 5: Solve for x
    x = 6,552,128,905,500,124/66,428,273.60
  6. Step 6: Final answer
    x = 98,634,640.80

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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.