Home / 1,240,272,031.80-1,860,408,047.70-1,067,943,430.20

Finding the Fourth Proportional to 1,240,272,031.80, 1,860,408,047.70 and 1,067,943,430.20

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Solution

The fourth proportional to 1,240,272,031.80, 1,860,408,047.70 and 1,067,943,430.20 is: 1,601,915,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,272,031.80 : 1,860,408,047.70 = 1,067,943,430.20 : x
  2. Step 2: Convert to fraction form
    1,240,272,031.80/1,860,408,047.70 = 1,067,943,430.20/x
  3. Step 3: Cross multiply
    1,240,272,031.80x = 1,860,408,047.70 × 1,067,943,430.20
  4. Step 4: Simplify right side
    1,240,272,031.80x = 1,986,810,552,032,423,424
  5. Step 5: Solve for x
    x = 1,986,810,552,032,423,424/1,240,272,031.80
  6. Step 6: Final answer
    x = 1,601,915,145.30

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Double scale
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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.