Home / 66,429,010.80-99,643,516.20-60,476,871.60

Finding the Fourth Proportional to 66,429,010.80, 99,643,516.20 and 60,476,871.60

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Solution

The fourth proportional to 66,429,010.80, 99,643,516.20 and 60,476,871.60 is: 90,715,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429,010.80 : 99,643,516.20 = 60,476,871.60 : x
  2. Step 2: Convert to fraction form
    66,429,010.80/99,643,516.20 = 60,476,871.60/x
  3. Step 3: Cross multiply
    66,429,010.80x = 99,643,516.20 × 60,476,871.60
  4. Step 4: Simplify right side
    66,429,010.80x = 6,026,128,134,999,920
  5. Step 5: Solve for x
    x = 6,026,128,134,999,920/66,429,010.80
  6. Step 6: Final answer
    x = 90,715,307.40

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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.