Home / 215,688,003.80-323,532,005.70-70,121,283.80

Finding the Fourth Proportional to 215,688,003.80, 323,532,005.70 and 70,121,283.80

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Solution

The fourth proportional to 215,688,003.80, 323,532,005.70 and 70,121,283.80 is: 105,181,925.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,688,003.80 : 323,532,005.70 = 70,121,283.80 : x
  2. Step 2: Convert to fraction form
    215,688,003.80/323,532,005.70 = 70,121,283.80/x
  3. Step 3: Cross multiply
    215,688,003.80x = 323,532,005.70 × 70,121,283.80
  4. Step 4: Simplify right side
    215,688,003.80x = 22,686,479,590,072,916
  5. Step 5: Solve for x
    x = 22,686,479,590,072,916/215,688,003.80
  6. Step 6: Final answer
    x = 105,181,925.70

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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.