Home / 40,685,741.40-61,128,144.90-30,608,045.40

Finding the Fourth Proportional to 40,685,741.40, 61,128,144.90 and 30,608,045.40

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Solution

The fourth proportional to 40,685,741.40, 61,128,144.90 and 30,608,045.40 is: 45,986,947.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,685,741.40 : 61,128,144.90 = 30,608,045.40 : x
  2. Step 2: Convert to fraction form
    40,685,741.40/61,128,144.90 = 30,608,045.40/x
  3. Step 3: Cross multiply
    40,685,741.40x = 61,128,144.90 × 30,608,045.40
  4. Step 4: Simplify right side
    40,685,741.40x = 1,871,013,034,316,978.25
  5. Step 5: Solve for x
    x = 1,871,013,034,316,978.25/40,685,741.40
  6. Step 6: Final answer
    x = 45,986,947.02

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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.