Home / 124,762,939.10-187,156,915.05-42,871,031.90

Finding the Fourth Proportional to 124,762,939.10, 187,156,915.05 and 42,871,031.90

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Solution

The fourth proportional to 124,762,939.10, 187,156,915.05 and 42,871,031.90 is: 64,310,845.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,762,939.10 : 187,156,915.05 = 42,871,031.90 : x
  2. Step 2: Convert to fraction form
    124,762,939.10/187,156,915.05 = 42,871,031.90/x
  3. Step 3: Cross multiply
    124,762,939.10x = 187,156,915.05 × 42,871,031.90
  4. Step 4: Simplify right side
    124,762,939.10x = 8,023,610,075,414,140
  5. Step 5: Solve for x
    x = 8,023,610,075,414,140/124,762,939.10
  6. Step 6: Final answer
    x = 64,310,845.30

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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.