Home / 1,137,312,004.20-1,705,968,006.30-930,687,743.40

Finding the Fourth Proportional to 1,137,312,004.20, 1,705,968,006.30 and 930,687,743.40

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Solution

The fourth proportional to 1,137,312,004.20, 1,705,968,006.30 and 930,687,743.40 is: 1,396,031,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,312,004.20 : 1,705,968,006.30 = 930,687,743.40 : x
  2. Step 2: Convert to fraction form
    1,137,312,004.20/1,705,968,006.30 = 930,687,743.40/x
  3. Step 3: Cross multiply
    1,137,312,004.20x = 1,705,968,006.30 × 930,687,743.40
  4. Step 4: Simplify right side
    1,137,312,004.20x = 1,587,723,514,095,943,936
  5. Step 5: Solve for x
    x = 1,587,723,514,095,943,936/1,137,312,004.20
  6. Step 6: Final answer
    x = 1,396,031,615.10

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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.