Home / 1,347,897,678.40-2,017,815,439.20-802,358,401.60

Finding the Fourth Proportional to 1,347,897,678.40, 2,017,815,439.20 and 802,358,401.60

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Solution

The fourth proportional to 1,347,897,678.40, 2,017,815,439.20 and 802,358,401.60 is: 1,201,138,036.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,897,678.40 : 2,017,815,439.20 = 802,358,401.60 : x
  2. Step 2: Convert to fraction form
    1,347,897,678.40/2,017,815,439.20 = 802,358,401.60/x
  3. Step 3: Cross multiply
    1,347,897,678.40x = 2,017,815,439.20 × 802,358,401.60
  4. Step 4: Simplify right side
    1,347,897,678.40x = 1,619,011,170,520,314,112
  5. Step 5: Solve for x
    x = 1,619,011,170,520,314,112/1,347,897,678.40
  6. Step 6: Final answer
    x = 1,201,138,036.27

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Double scale
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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.