Home / 210,721,198,810.12-290,787,730,422.09-119,267,786,101.53

Finding the Fourth Proportional to 210,721,198,810.12, 290,787,730,422.09 and 119,267,786,101.53

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Solution

The fourth proportional to 210,721,198,810.12, 290,787,730,422.09 and 119,267,786,101.53 is: 164,585,286,287.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,721,198,810.12 : 290,787,730,422.09 = 119,267,786,101.53 : x
  2. Step 2: Convert to fraction form
    210,721,198,810.12/290,787,730,422.09 = 119,267,786,101.53/x
  3. Step 3: Cross multiply
    210,721,198,810.12x = 290,787,730,422.09 × 119,267,786,101.53
  4. Step 4: Simplify right side
    210,721,198,810.12x = 34,681,608,832,931,199,975,424
  5. Step 5: Solve for x
    x = 34,681,608,832,931,199,975,424/210,721,198,810.12
  6. Step 6: Final answer
    x = 164,585,286,287.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.