Home / 2,115,477,069.79-3,173,229,126.80-621,502,503.20

Finding the Fourth Proportional to 2,115,477,069.79, 3,173,229,126.80 and 621,502,503.20

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Solution

The fourth proportional to 2,115,477,069.79, 3,173,229,126.80 and 621,502,503.20 is: 932,257,727.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,477,069.79 : 3,173,229,126.80 = 621,502,503.20 : x
  2. Step 2: Convert to fraction form
    2,115,477,069.79/3,173,229,126.80 = 621,502,503.20/x
  3. Step 3: Cross multiply
    2,115,477,069.79x = 3,173,229,126.80 × 621,502,503.20
  4. Step 4: Simplify right side
    2,115,477,069.79x = 1,972,169,845,533,350,400
  5. Step 5: Solve for x
    x = 1,972,169,845,533,350,400/2,115,477,069.79
  6. Step 6: Final answer
    x = 932,257,727.44

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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.