Home / 189,359,871.40-284,039,807.10-108,738,303.40

Finding the Fourth Proportional to 189,359,871.40, 284,039,807.10 and 108,738,303.40

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Solution

The fourth proportional to 189,359,871.40, 284,039,807.10 and 108,738,303.40 is: 163,107,455.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,359,871.40 : 284,039,807.10 = 108,738,303.40 : x
  2. Step 2: Convert to fraction form
    189,359,871.40/284,039,807.10 = 108,738,303.40/x
  3. Step 3: Cross multiply
    189,359,871.40x = 284,039,807.10 × 108,738,303.40
  4. Step 4: Simplify right side
    189,359,871.40x = 30,886,006,722,117,280
  5. Step 5: Solve for x
    x = 30,886,006,722,117,280/189,359,871.40
  6. Step 6: Final answer
    x = 163,107,455.10

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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.