Home / 1,349,706,890.32-1,861,781,068.40-891,419,242.40

Finding the Fourth Proportional to 1,349,706,890.32, 1,861,781,068.40 and 891,419,242.40

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Solution

The fourth proportional to 1,349,706,890.32, 1,861,781,068.40 and 891,419,242.40 is: 1,229,620,654.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,706,890.32 : 1,861,781,068.40 = 891,419,242.40 : x
  2. Step 2: Convert to fraction form
    1,349,706,890.32/1,861,781,068.40 = 891,419,242.40/x
  3. Step 3: Cross multiply
    1,349,706,890.32x = 1,861,781,068.40 × 891,419,242.40
  4. Step 4: Simplify right side
    1,349,706,890.32x = 1,659,627,469,507,790,592
  5. Step 5: Solve for x
    x = 1,659,627,469,507,790,592/1,349,706,890.32
  6. Step 6: Final answer
    x = 1,229,620,654.24

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1.5x scale

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.