Home / 187,013,246.40-280,519,869.60-84,976,574.40

Finding the Fourth Proportional to 187,013,246.40, 280,519,869.60 and 84,976,574.40

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Solution

The fourth proportional to 187,013,246.40, 280,519,869.60 and 84,976,574.40 is: 127,464,861.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,013,246.40 : 280,519,869.60 = 84,976,574.40 : x
  2. Step 2: Convert to fraction form
    187,013,246.40/280,519,869.60 = 84,976,574.40/x
  3. Step 3: Cross multiply
    187,013,246.40x = 280,519,869.60 × 84,976,574.40
  4. Step 4: Simplify right side
    187,013,246.40x = 23,837,617,569,742,700
  5. Step 5: Solve for x
    x = 23,837,617,569,742,700/187,013,246.40
  6. Step 6: Final answer
    x = 127,464,861.60

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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.