Home / 142,521,866.80-213,782,800.20-122,114,532.40

Finding the Fourth Proportional to 142,521,866.80, 213,782,800.20 and 122,114,532.40

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Solution

The fourth proportional to 142,521,866.80, 213,782,800.20 and 122,114,532.40 is: 183,171,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,521,866.80 : 213,782,800.20 = 122,114,532.40 : x
  2. Step 2: Convert to fraction form
    142,521,866.80/213,782,800.20 = 122,114,532.40/x
  3. Step 3: Cross multiply
    142,521,866.80x = 213,782,800.20 × 122,114,532.40
  4. Step 4: Simplify right side
    142,521,866.80x = 26,105,986,681,585,628
  5. Step 5: Solve for x
    x = 26,105,986,681,585,628/142,521,866.80
  6. Step 6: Final answer
    x = 183,171,798.60

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1.5x scale

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.