Home / 260,730,386.40-390,528,709.20-158,315,800.80

Finding the Fourth Proportional to 260,730,386.40, 390,528,709.20 and 158,315,800.80

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Solution

The fourth proportional to 260,730,386.40, 390,528,709.20 and 158,315,800.80 is: 237,129,496.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,730,386.40 : 390,528,709.20 = 158,315,800.80 : x
  2. Step 2: Convert to fraction form
    260,730,386.40/390,528,709.20 = 158,315,800.80/x
  3. Step 3: Cross multiply
    260,730,386.40x = 390,528,709.20 × 158,315,800.80
  4. Step 4: Simplify right side
    260,730,386.40x = 61,826,865,332,388,328
  5. Step 5: Solve for x
    x = 61,826,865,332,388,328/260,730,386.40
  6. Step 6: Final answer
    x = 237,129,496.82

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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.