Home / 145,824,139.20-218,736,208.80-143,556,657.60

Finding the Fourth Proportional to 145,824,139.20, 218,736,208.80 and 143,556,657.60

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Solution

The fourth proportional to 145,824,139.20, 218,736,208.80 and 143,556,657.60 is: 215,334,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,824,139.20 : 218,736,208.80 = 143,556,657.60 : x
  2. Step 2: Convert to fraction form
    145,824,139.20/218,736,208.80 = 143,556,657.60/x
  3. Step 3: Cross multiply
    145,824,139.20x = 218,736,208.80 × 143,556,657.60
  4. Step 4: Simplify right side
    145,824,139.20x = 31,401,039,031,423,708
  5. Step 5: Solve for x
    x = 31,401,039,031,423,708/145,824,139.20
  6. Step 6: Final answer
    x = 215,334,986.40

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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.