Home / 66,571,030.40-99,856,545.60-54,477,795.20

Finding the Fourth Proportional to 66,571,030.40, 99,856,545.60 and 54,477,795.20

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Solution

The fourth proportional to 66,571,030.40, 99,856,545.60 and 54,477,795.20 is: 81,716,692.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,571,030.40 : 99,856,545.60 = 54,477,795.20 : x
  2. Step 2: Convert to fraction form
    66,571,030.40/99,856,545.60 = 54,477,795.20/x
  3. Step 3: Cross multiply
    66,571,030.40x = 99,856,545.60 × 54,477,795.20
  4. Step 4: Simplify right side
    66,571,030.40x = 5,439,964,440,576,261
  5. Step 5: Solve for x
    x = 5,439,964,440,576,261/66,571,030.40
  6. Step 6: Final answer
    x = 81,716,692.80

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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.