Home / 87,543,395.40-120,816,140.70-48,384,329.40

Finding the Fourth Proportional to 87,543,395.40, 120,816,140.70 and 48,384,329.40

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Solution

The fourth proportional to 87,543,395.40, 120,816,140.70 and 48,384,329.40 is: 66,773,831.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,543,395.40 : 120,816,140.70 = 48,384,329.40 : x
  2. Step 2: Convert to fraction form
    87,543,395.40/120,816,140.70 = 48,384,329.40/x
  3. Step 3: Cross multiply
    87,543,395.40x = 120,816,140.70 × 48,384,329.40
  4. Step 4: Simplify right side
    87,543,395.40x = 5,845,607,948,465,547
  5. Step 5: Solve for x
    x = 5,845,607,948,465,547/87,543,395.40
  6. Step 6: Final answer
    x = 66,773,831.67

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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.