Home / 754,023,987.80-1,131,035,981.70-208,765,521.80

Finding the Fourth Proportional to 754,023,987.80, 1,131,035,981.70 and 208,765,521.80

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Solution

The fourth proportional to 754,023,987.80, 1,131,035,981.70 and 208,765,521.80 is: 313,148,282.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,023,987.80 : 1,131,035,981.70 = 208,765,521.80 : x
  2. Step 2: Convert to fraction form
    754,023,987.80/1,131,035,981.70 = 208,765,521.80/x
  3. Step 3: Cross multiply
    754,023,987.80x = 1,131,035,981.70 × 208,765,521.80
  4. Step 4: Simplify right side
    754,023,987.80x = 236,121,316,894,175,776
  5. Step 5: Solve for x
    x = 236,121,316,894,175,776/754,023,987.80
  6. Step 6: Final answer
    x = 313,148,282.70

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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.