Home / 65,396,962.10-90,241,032.21-40,275,096.50

Finding the Fourth Proportional to 65,396,962.10, 90,241,032.21 and 40,275,096.50

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Solution

The fourth proportional to 65,396,962.10, 90,241,032.21 and 40,275,096.50 is: 55,575,460.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,396,962.10 : 90,241,032.21 = 40,275,096.50 : x
  2. Step 2: Convert to fraction form
    65,396,962.10/90,241,032.21 = 40,275,096.50/x
  3. Step 3: Cross multiply
    65,396,962.10x = 90,241,032.21 × 40,275,096.50
  4. Step 4: Simplify right side
    65,396,962.10x = 3,634,466,280,517,358
  5. Step 5: Solve for x
    x = 3,634,466,280,517,358/65,396,962.10
  6. Step 6: Final answer
    x = 55,575,460.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.