Home / 115,513,643.20-173,270,464.80-74,698,974.40

Finding the Fourth Proportional to 115,513,643.20, 173,270,464.80 and 74,698,974.40

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Solution

The fourth proportional to 115,513,643.20, 173,270,464.80 and 74,698,974.40 is: 112,048,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,513,643.20 : 173,270,464.80 = 74,698,974.40 : x
  2. Step 2: Convert to fraction form
    115,513,643.20/173,270,464.80 = 74,698,974.40/x
  3. Step 3: Cross multiply
    115,513,643.20x = 173,270,464.80 × 74,698,974.40
  4. Step 4: Simplify right side
    115,513,643.20x = 12,943,126,014,371,304
  5. Step 5: Solve for x
    x = 12,943,126,014,371,304/115,513,643.20
  6. Step 6: Final answer
    x = 112,048,461.60

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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.