Home / 90,814,537.80-136,221,806.70-90,247,667.40

Finding the Fourth Proportional to 90,814,537.80, 136,221,806.70 and 90,247,667.40

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Solution

The fourth proportional to 90,814,537.80, 136,221,806.70 and 90,247,667.40 is: 135,371,501.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,814,537.80 : 136,221,806.70 = 90,247,667.40 : x
  2. Step 2: Convert to fraction form
    90,814,537.80/136,221,806.70 = 90,247,667.40/x
  3. Step 3: Cross multiply
    90,814,537.80x = 136,221,806.70 × 90,247,667.40
  4. Step 4: Simplify right side
    90,814,537.80x = 12,293,700,303,688,692
  5. Step 5: Solve for x
    x = 12,293,700,303,688,692/90,814,537.80
  6. Step 6: Final answer
    x = 135,371,501.10

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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.