Home / 800,778,870.40-1,201,168,305.60-283,793,065.60

Finding the Fourth Proportional to 800,778,870.40, 1,201,168,305.60 and 283,793,065.60

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Solution

The fourth proportional to 800,778,870.40, 1,201,168,305.60 and 283,793,065.60 is: 425,689,598.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,778,870.40 : 1,201,168,305.60 = 283,793,065.60 : x
  2. Step 2: Convert to fraction form
    800,778,870.40/1,201,168,305.60 = 283,793,065.60/x
  3. Step 3: Cross multiply
    800,778,870.40x = 1,201,168,305.60 × 283,793,065.60
  4. Step 4: Simplify right side
    800,778,870.40x = 340,883,235,747,781,632
  5. Step 5: Solve for x
    x = 340,883,235,747,781,632/800,778,870.40
  6. Step 6: Final answer
    x = 425,689,598.40

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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.