Home / 86,389,667.16-129,617,136.85-51,870,138.42

Finding the Fourth Proportional to 86,389,667.16, 129,617,136.85 and 51,870,138.42

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Solution

The fourth proportional to 86,389,667.16, 129,617,136.85 and 51,870,138.42 is: 77,824,803.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,389,667.16 : 129,617,136.85 = 51,870,138.42 : x
  2. Step 2: Convert to fraction form
    86,389,667.16/129,617,136.85 = 51,870,138.42/x
  3. Step 3: Cross multiply
    86,389,667.16x = 129,617,136.85 × 51,870,138.42
  4. Step 4: Simplify right side
    86,389,667.16x = 6,723,258,830,013,583
  5. Step 5: Solve for x
    x = 6,723,258,830,013,583/86,389,667.16
  6. Step 6: Final answer
    x = 77,824,803.02

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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.