Home / 85,536,040.40-128,304,060.60-28,030,187.60

Finding the Fourth Proportional to 85,536,040.40, 128,304,060.60 and 28,030,187.60

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Solution

The fourth proportional to 85,536,040.40, 128,304,060.60 and 28,030,187.60 is: 42,045,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,040.40 : 128,304,060.60 = 28,030,187.60 : x
  2. Step 2: Convert to fraction form
    85,536,040.40/128,304,060.60 = 28,030,187.60/x
  3. Step 3: Cross multiply
    85,536,040.40x = 128,304,060.60 × 28,030,187.60
  4. Step 4: Simplify right side
    85,536,040.40x = 3,596,386,888,459,768.50
  5. Step 5: Solve for x
    x = 3,596,386,888,459,768.50/85,536,040.40
  6. Step 6: Final answer
    x = 42,045,281.40

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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.