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Finding the Fourth Proportional to 1,294,709,000.40, 1,942,063,500.60 and 881,460,478.80

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Solution

The fourth proportional to 1,294,709,000.40, 1,942,063,500.60 and 881,460,478.80 is: 1,322,190,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,709,000.40 : 1,942,063,500.60 = 881,460,478.80 : x
  2. Step 2: Convert to fraction form
    1,294,709,000.40/1,942,063,500.60 = 881,460,478.80/x
  3. Step 3: Cross multiply
    1,294,709,000.40x = 1,942,063,500.60 × 881,460,478.80
  4. Step 4: Simplify right side
    1,294,709,000.40x = 1,711,852,223,098,880,000
  5. Step 5: Solve for x
    x = 1,711,852,223,098,880,000/1,294,709,000.40
  6. Step 6: Final answer
    x = 1,322,190,718.20

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Double scale
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Similar ratio
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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.