Home / 1,228,687,020.30-1,843,030,530.45-815,438,498.70

Finding the Fourth Proportional to 1,228,687,020.30, 1,843,030,530.45 and 815,438,498.70

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Solution

The fourth proportional to 1,228,687,020.30, 1,843,030,530.45 and 815,438,498.70 is: 1,223,157,748.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,687,020.30 : 1,843,030,530.45 = 815,438,498.70 : x
  2. Step 2: Convert to fraction form
    1,228,687,020.30/1,843,030,530.45 = 815,438,498.70/x
  3. Step 3: Cross multiply
    1,228,687,020.30x = 1,843,030,530.45 × 815,438,498.70
  4. Step 4: Simplify right side
    1,228,687,020.30x = 1,502,878,048,808,412,672
  5. Step 5: Solve for x
    x = 1,502,878,048,808,412,672/1,228,687,020.30
  6. Step 6: Final answer
    x = 1,223,157,748.05

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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.