Home / 1,315,023,980.88-1,972,789,752.54-429,471,271.02

Finding the Fourth Proportional to 1,315,023,980.88, 1,972,789,752.54 and 429,471,271.02

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Solution

The fourth proportional to 1,315,023,980.88, 1,972,789,752.54 and 429,471,271.02 is: 644,289,788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,023,980.88 : 1,972,789,752.54 = 429,471,271.02 : x
  2. Step 2: Convert to fraction form
    1,315,023,980.88/1,972,789,752.54 = 429,471,271.02/x
  3. Step 3: Cross multiply
    1,315,023,980.88x = 1,972,789,752.54 × 429,471,271.02
  4. Step 4: Simplify right side
    1,315,023,980.88x = 847,256,522,478,584,960
  5. Step 5: Solve for x
    x = 847,256,522,478,584,960/1,315,023,980.88
  6. Step 6: Final answer
    x = 644,289,788.47

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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.