Home / 1,010,786,079.40-1,394,956,970.40-558,654,320.30

Finding the Fourth Proportional to 1,010,786,079.40, 1,394,956,970.40 and 558,654,320.30

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Solution

The fourth proportional to 1,010,786,079.40, 1,394,956,970.40 and 558,654,320.30 is: 770,982,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,786,079.40 : 1,394,956,970.40 = 558,654,320.30 : x
  2. Step 2: Convert to fraction form
    1,010,786,079.40/1,394,956,970.40 = 558,654,320.30/x
  3. Step 3: Cross multiply
    1,010,786,079.40x = 1,394,956,970.40 × 558,654,320.30
  4. Step 4: Simplify right side
    1,010,786,079.40x = 779,298,738,146,559,232
  5. Step 5: Solve for x
    x = 779,298,738,146,559,232/1,010,786,079.40
  6. Step 6: Final answer
    x = 770,982,855.85

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1.5x scale

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.