Home / 189,043,821.40-283,565,732.10-120,963,386.20

Finding the Fourth Proportional to 189,043,821.40, 283,565,732.10 and 120,963,386.20

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Solution

The fourth proportional to 189,043,821.40, 283,565,732.10 and 120,963,386.20 is: 181,445,079.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,043,821.40 : 283,565,732.10 = 120,963,386.20 : x
  2. Step 2: Convert to fraction form
    189,043,821.40/283,565,732.10 = 120,963,386.20/x
  3. Step 3: Cross multiply
    189,043,821.40x = 283,565,732.10 × 120,963,386.20
  4. Step 4: Simplify right side
    189,043,821.40x = 34,301,071,165,098,040
  5. Step 5: Solve for x
    x = 34,301,071,165,098,040/189,043,821.40
  6. Step 6: Final answer
    x = 181,445,079.30

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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.