Home / 155,390,459.72-214,443,909.84-84,829,832.30

Finding the Fourth Proportional to 155,390,459.72, 214,443,909.84 and 84,829,832.30

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Solution

The fourth proportional to 155,390,459.72, 214,443,909.84 and 84,829,832.30 is: 117,067,939.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,390,459.72 : 214,443,909.84 = 84,829,832.30 : x
  2. Step 2: Convert to fraction form
    155,390,459.72/214,443,909.84 = 84,829,832.30/x
  3. Step 3: Cross multiply
    155,390,459.72x = 214,443,909.84 × 84,829,832.30
  4. Step 4: Simplify right side
    155,390,459.72x = 18,191,240,909,483,520
  5. Step 5: Solve for x
    x = 18,191,240,909,483,520/155,390,459.72
  6. Step 6: Final answer
    x = 117,067,939.32

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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.