Home / 152,642,478.80-210,627,456.36-103,190,427.92

Finding the Fourth Proportional to 152,642,478.80, 210,627,456.36 and 103,190,427.92

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Solution

The fourth proportional to 152,642,478.80, 210,627,456.36 and 103,190,427.92 is: 142,389,834.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,642,478.80 : 210,627,456.36 = 103,190,427.92 : x
  2. Step 2: Convert to fraction form
    152,642,478.80/210,627,456.36 = 103,190,427.92/x
  3. Step 3: Cross multiply
    152,642,478.80x = 210,627,456.36 × 103,190,427.92
  4. Step 4: Simplify right side
    152,642,478.80x = 21,734,737,353,489,528
  5. Step 5: Solve for x
    x = 21,734,737,353,489,528/152,642,478.80
  6. Step 6: Final answer
    x = 142,389,834.89

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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.