Home / 1,412,142,886.12-2,118,520,757.55-429,543,887.49

Finding the Fourth Proportional to 1,412,142,886.12, 2,118,520,757.55 and 429,543,887.49

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Solution

The fourth proportional to 1,412,142,886.12, 2,118,520,757.55 and 429,543,887.49 is: 644,409,040.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,142,886.12 : 2,118,520,757.55 = 429,543,887.49 : x
  2. Step 2: Convert to fraction form
    1,412,142,886.12/2,118,520,757.55 = 429,543,887.49/x
  3. Step 3: Cross multiply
    1,412,142,886.12x = 2,118,520,757.55 × 429,543,887.49
  4. Step 4: Simplify right side
    1,412,142,886.12x = 909,997,641,934,110,208
  5. Step 5: Solve for x
    x = 909,997,641,934,110,208/1,412,142,886.12
  6. Step 6: Final answer
    x = 644,409,040.25

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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.