Home / 258,730,483.20-388,095,724.80-105,486,518.40

Finding the Fourth Proportional to 258,730,483.20, 388,095,724.80 and 105,486,518.40

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Solution

The fourth proportional to 258,730,483.20, 388,095,724.80 and 105,486,518.40 is: 158,229,777.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,730,483.20 : 388,095,724.80 = 105,486,518.40 : x
  2. Step 2: Convert to fraction form
    258,730,483.20/388,095,724.80 = 105,486,518.40/x
  3. Step 3: Cross multiply
    258,730,483.20x = 388,095,724.80 × 105,486,518.40
  4. Step 4: Simplify right side
    258,730,483.20x = 40,938,866,815,076,536
  5. Step 5: Solve for x
    x = 40,938,866,815,076,536/258,730,483.20
  6. Step 6: Final answer
    x = 158,229,777.60

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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.