Home / 970,240,854.40-1,455,361,281.60-280,170,620.80

Finding the Fourth Proportional to 970,240,854.40, 1,455,361,281.60 and 280,170,620.80

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Solution

The fourth proportional to 970,240,854.40, 1,455,361,281.60 and 280,170,620.80 is: 420,255,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,240,854.40 : 1,455,361,281.60 = 280,170,620.80 : x
  2. Step 2: Convert to fraction form
    970,240,854.40/1,455,361,281.60 = 280,170,620.80/x
  3. Step 3: Cross multiply
    970,240,854.40x = 1,455,361,281.60 × 280,170,620.80
  4. Step 4: Simplify right side
    970,240,854.40x = 407,749,473,754,155,584
  5. Step 5: Solve for x
    x = 407,749,473,754,155,584/970,240,854.40
  6. Step 6: Final answer
    x = 420,255,931.20

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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.