Home / 872,109,364.60-1,308,164,046.90-678,617,601.40

Finding the Fourth Proportional to 872,109,364.60, 1,308,164,046.90 and 678,617,601.40

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Solution

The fourth proportional to 872,109,364.60, 1,308,164,046.90 and 678,617,601.40 is: 1,017,926,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,109,364.60 : 1,308,164,046.90 = 678,617,601.40 : x
  2. Step 2: Convert to fraction form
    872,109,364.60/1,308,164,046.90 = 678,617,601.40/x
  3. Step 3: Cross multiply
    872,109,364.60x = 1,308,164,046.90 × 678,617,601.40
  4. Step 4: Simplify right side
    872,109,364.60x = 887,743,147,744,995,200
  5. Step 5: Solve for x
    x = 887,743,147,744,995,200/872,109,364.60
  6. Step 6: Final answer
    x = 1,017,926,402.10

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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.