Home / 30,249,661.80-45,396,611.10-20,148,925.80

Finding the Fourth Proportional to 30,249,661.80, 45,396,611.10 and 20,148,925.80

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Solution

The fourth proportional to 30,249,661.80, 45,396,611.10 and 20,148,925.80 is: 30,238,121.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,249,661.80 : 45,396,611.10 = 20,148,925.80 : x
  2. Step 2: Convert to fraction form
    30,249,661.80/45,396,611.10 = 20,148,925.80/x
  3. Step 3: Cross multiply
    30,249,661.80x = 45,396,611.10 × 20,148,925.80
  4. Step 4: Simplify right side
    30,249,661.80x = 914,692,948,625,356.50
  5. Step 5: Solve for x
    x = 914,692,948,625,356.50/30,249,661.80
  6. Step 6: Final answer
    x = 30,238,121.49

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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.