Home / 258,736,020.20-388,104,030.30-105,492,055.40

Finding the Fourth Proportional to 258,736,020.20, 388,104,030.30 and 105,492,055.40

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Solution

The fourth proportional to 258,736,020.20, 388,104,030.30 and 105,492,055.40 is: 158,238,083.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,736,020.20 : 388,104,030.30 = 105,492,055.40 : x
  2. Step 2: Convert to fraction form
    258,736,020.20/388,104,030.30 = 105,492,055.40/x
  3. Step 3: Cross multiply
    258,736,020.20x = 388,104,030.30 × 105,492,055.40
  4. Step 4: Simplify right side
    258,736,020.20x = 40,941,891,865,370,880
  5. Step 5: Solve for x
    x = 40,941,891,865,370,880/258,736,020.20
  6. Step 6: Final answer
    x = 158,238,083.10

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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.