Home / 143,892,130.70-215,838,196.05-100,809,980.30

Finding the Fourth Proportional to 143,892,130.70, 215,838,196.05 and 100,809,980.30

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Solution

The fourth proportional to 143,892,130.70, 215,838,196.05 and 100,809,980.30 is: 151,214,970.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,892,130.70 : 215,838,196.05 = 100,809,980.30 : x
  2. Step 2: Convert to fraction form
    143,892,130.70/215,838,196.05 = 100,809,980.30/x
  3. Step 3: Cross multiply
    143,892,130.70x = 215,838,196.05 × 100,809,980.30
  4. Step 4: Simplify right side
    143,892,130.70x = 21,758,644,291,788,040
  5. Step 5: Solve for x
    x = 21,758,644,291,788,040/143,892,130.70
  6. Step 6: Final answer
    x = 151,214,970.45

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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.