Home / 712,868,747.40-1,069,492,077.90-252,758,939.40

Finding the Fourth Proportional to 712,868,747.40, 1,069,492,077.90 and 252,758,939.40

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Solution

The fourth proportional to 712,868,747.40, 1,069,492,077.90 and 252,758,939.40 is: 379,205,406.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,868,747.40 : 1,069,492,077.90 = 252,758,939.40 : x
  2. Step 2: Convert to fraction form
    712,868,747.40/1,069,492,077.90 = 252,758,939.40/x
  3. Step 3: Cross multiply
    712,868,747.40x = 1,069,492,077.90 × 252,758,939.40
  4. Step 4: Simplify right side
    712,868,747.40x = 270,323,683,306,706,176
  5. Step 5: Solve for x
    x = 270,323,683,306,706,176/712,868,747.40
  6. Step 6: Final answer
    x = 379,205,406.74

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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.