Home / 98,415,170.80-147,622,756.20-66,166,543.60

Finding the Fourth Proportional to 98,415,170.80, 147,622,756.20 and 66,166,543.60

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Solution

The fourth proportional to 98,415,170.80, 147,622,756.20 and 66,166,543.60 is: 99,249,815.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,415,170.80 : 147,622,756.20 = 66,166,543.60 : x
  2. Step 2: Convert to fraction form
    98,415,170.80/147,622,756.20 = 66,166,543.60/x
  3. Step 3: Cross multiply
    98,415,170.80x = 147,622,756.20 × 66,166,543.60
  4. Step 4: Simplify right side
    98,415,170.80x = 9,767,687,534,459,470
  5. Step 5: Solve for x
    x = 9,767,687,534,459,470/98,415,170.80
  6. Step 6: Final answer
    x = 99,249,815.40

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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.