Home / 130,380,019.40-195,570,029.10-128,466,831.80

Finding the Fourth Proportional to 130,380,019.40, 195,570,029.10 and 128,466,831.80

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Solution

The fourth proportional to 130,380,019.40, 195,570,029.10 and 128,466,831.80 is: 192,700,247.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,380,019.40 : 195,570,029.10 = 128,466,831.80 : x
  2. Step 2: Convert to fraction form
    130,380,019.40/195,570,029.10 = 128,466,831.80/x
  3. Step 3: Cross multiply
    130,380,019.40x = 195,570,029.10 × 128,466,831.80
  4. Step 4: Simplify right side
    130,380,019.40x = 25,124,262,033,510,804
  5. Step 5: Solve for x
    x = 25,124,262,033,510,804/130,380,019.40
  6. Step 6: Final answer
    x = 192,700,247.70

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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.