Home / 326,621,807.20-489,932,710.80-144,868,985.20

Finding the Fourth Proportional to 326,621,807.20, 489,932,710.80 and 144,868,985.20

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Solution

The fourth proportional to 326,621,807.20, 489,932,710.80 and 144,868,985.20 is: 217,303,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,621,807.20 : 489,932,710.80 = 144,868,985.20 : x
  2. Step 2: Convert to fraction form
    326,621,807.20/489,932,710.80 = 144,868,985.20/x
  3. Step 3: Cross multiply
    326,621,807.20x = 489,932,710.80 × 144,868,985.20
  4. Step 4: Simplify right side
    326,621,807.20x = 70,976,054,629,881,080
  5. Step 5: Solve for x
    x = 70,976,054,629,881,080/326,621,807.20
  6. Step 6: Final answer
    x = 217,303,477.80

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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.