Home / 137,465,923.28-189,701,640.41-74,742,020.41

Finding the Fourth Proportional to 137,465,923.28, 189,701,640.41 and 74,742,020.41

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Solution

The fourth proportional to 137,465,923.28, 189,701,640.41 and 74,742,020.41 is: 103,143,263.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,465,923.28 : 189,701,640.41 = 74,742,020.41 : x
  2. Step 2: Convert to fraction form
    137,465,923.28/189,701,640.41 = 74,742,020.41/x
  3. Step 3: Cross multiply
    137,465,923.28x = 189,701,640.41 × 74,742,020.41
  4. Step 4: Simplify right side
    137,465,923.28x = 14,178,683,879,521,554
  5. Step 5: Solve for x
    x = 14,178,683,879,521,554/137,465,923.28
  6. Step 6: Final answer
    x = 103,143,263.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.