Home / 1,490,304,011.60-2,235,456,017.40-520,854,539.60

Finding the Fourth Proportional to 1,490,304,011.60, 2,235,456,017.40 and 520,854,539.60

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Solution

The fourth proportional to 1,490,304,011.60, 2,235,456,017.40 and 520,854,539.60 is: 781,281,809.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,304,011.60 : 2,235,456,017.40 = 520,854,539.60 : x
  2. Step 2: Convert to fraction form
    1,490,304,011.60/2,235,456,017.40 = 520,854,539.60/x
  3. Step 3: Cross multiply
    1,490,304,011.60x = 2,235,456,017.40 × 520,854,539.60
  4. Step 4: Simplify right side
    1,490,304,011.60x = 1,164,347,414,738,926,592
  5. Step 5: Solve for x
    x = 1,164,347,414,738,926,592/1,490,304,011.60
  6. Step 6: Final answer
    x = 781,281,809.40

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Double scale
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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.