Home / 86,206,945.20-129,310,417.80-70,901,444.40

Finding the Fourth Proportional to 86,206,945.20, 129,310,417.80 and 70,901,444.40

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Solution

The fourth proportional to 86,206,945.20, 129,310,417.80 and 70,901,444.40 is: 106,352,166.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,206,945.20 : 129,310,417.80 = 70,901,444.40 : x
  2. Step 2: Convert to fraction form
    86,206,945.20/129,310,417.80 = 70,901,444.40/x
  3. Step 3: Cross multiply
    86,206,945.20x = 129,310,417.80 × 70,901,444.40
  4. Step 4: Simplify right side
    86,206,945.20x = 9,168,295,397,987,470
  5. Step 5: Solve for x
    x = 9,168,295,397,987,470/86,206,945.20
  6. Step 6: Final answer
    x = 106,352,166.60

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1.5x scale

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.