Home / 929,302,877.70-1,390,725,812.48-851,818,779.90

Finding the Fourth Proportional to 929,302,877.70, 1,390,725,812.48 and 851,818,779.90

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Solution

The fourth proportional to 929,302,877.70, 1,390,725,812.48 and 851,818,779.90 is: 1,274,768,854.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,302,877.70 : 1,390,725,812.48 = 851,818,779.90 : x
  2. Step 2: Convert to fraction form
    929,302,877.70/1,390,725,812.48 = 851,818,779.90/x
  3. Step 3: Cross multiply
    929,302,877.70x = 1,390,725,812.48 × 851,818,779.90
  4. Step 4: Simplify right side
    929,302,877.70x = 1,184,646,364,757,890,560
  5. Step 5: Solve for x
    x = 1,184,646,364,757,890,560/929,302,877.70
  6. Step 6: Final answer
    x = 1,274,768,854.36

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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.