Home / 249,535,438.20-374,328,170.10-85,751,623.80

Finding the Fourth Proportional to 249,535,438.20, 374,328,170.10 and 85,751,623.80

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Solution

The fourth proportional to 249,535,438.20, 374,328,170.10 and 85,751,623.80 is: 128,636,031.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,535,438.20 : 374,328,170.10 = 85,751,623.80 : x
  2. Step 2: Convert to fraction form
    249,535,438.20/374,328,170.10 = 85,751,623.80/x
  3. Step 3: Cross multiply
    249,535,438.20x = 374,328,170.10 × 85,751,623.80
  4. Step 4: Simplify right side
    249,535,438.20x = 32,099,248,420,157,608
  5. Step 5: Solve for x
    x = 32,099,248,420,157,608/249,535,438.20
  6. Step 6: Final answer
    x = 128,636,031.23

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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.