Home / 653,228,002.20-979,842,003.30-290,430,946.20

Finding the Fourth Proportional to 653,228,002.20, 979,842,003.30 and 290,430,946.20

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Solution

The fourth proportional to 653,228,002.20, 979,842,003.30 and 290,430,946.20 is: 435,646,419.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,228,002.20 : 979,842,003.30 = 290,430,946.20 : x
  2. Step 2: Convert to fraction form
    653,228,002.20/979,842,003.30 = 290,430,946.20/x
  3. Step 3: Cross multiply
    653,228,002.20x = 979,842,003.30 × 290,430,946.20
  4. Step 4: Simplify right side
    653,228,002.20x = 284,576,440,144,922,496
  5. Step 5: Solve for x
    x = 284,576,440,144,922,496/653,228,002.20
  6. Step 6: Final answer
    x = 435,646,419.30

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Double scale
Find fourth proportional to 653,228,003.20, 979,842,004.80 and 290,430,947.20
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.