Home / 142,648,014.60-213,972,021.90-51,759,793.80

Finding the Fourth Proportional to 142,648,014.60, 213,972,021.90 and 51,759,793.80

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Solution

The fourth proportional to 142,648,014.60, 213,972,021.90 and 51,759,793.80 is: 77,639,690.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,648,014.60 : 213,972,021.90 = 51,759,793.80 : x
  2. Step 2: Convert to fraction form
    142,648,014.60/213,972,021.90 = 51,759,793.80/x
  3. Step 3: Cross multiply
    142,648,014.60x = 213,972,021.90 × 51,759,793.80
  4. Step 4: Simplify right side
    142,648,014.60x = 11,075,147,732,513,084
  5. Step 5: Solve for x
    x = 11,075,147,732,513,084/142,648,014.60
  6. Step 6: Final answer
    x = 77,639,690.70

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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.