Home / 819,069,809.60-1,228,604,714.40-301,871,428.40

Finding the Fourth Proportional to 819,069,809.60, 1,228,604,714.40 and 301,871,428.40

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Solution

The fourth proportional to 819,069,809.60, 1,228,604,714.40 and 301,871,428.40 is: 452,807,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,069,809.60 : 1,228,604,714.40 = 301,871,428.40 : x
  2. Step 2: Convert to fraction form
    819,069,809.60/1,228,604,714.40 = 301,871,428.40/x
  3. Step 3: Cross multiply
    819,069,809.60x = 1,228,604,714.40 × 301,871,428.40
  4. Step 4: Simplify right side
    819,069,809.60x = 370,880,660,074,902,080
  5. Step 5: Solve for x
    x = 370,880,660,074,902,080/819,069,809.60
  6. Step 6: Final answer
    x = 452,807,142.60

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Double scale
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Similar ratio
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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.