Home / 915,627,404.80-1,373,441,107.20-879,914,569.60

Finding the Fourth Proportional to 915,627,404.80, 1,373,441,107.20 and 879,914,569.60

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Solution

The fourth proportional to 915,627,404.80, 1,373,441,107.20 and 879,914,569.60 is: 1,319,871,854.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,627,404.80 : 1,373,441,107.20 = 879,914,569.60 : x
  2. Step 2: Convert to fraction form
    915,627,404.80/1,373,441,107.20 = 879,914,569.60/x
  3. Step 3: Cross multiply
    915,627,404.80x = 1,373,441,107.20 × 879,914,569.60
  4. Step 4: Simplify right side
    915,627,404.80x = 1,208,510,840,712,835,584
  5. Step 5: Solve for x
    x = 1,208,510,840,712,835,584/915,627,404.80
  6. Step 6: Final answer
    x = 1,319,871,854.40

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1.5x scale

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.