Home / 102,185,999.20-153,278,998.80-86,880,498.40

Finding the Fourth Proportional to 102,185,999.20, 153,278,998.80 and 86,880,498.40

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Solution

The fourth proportional to 102,185,999.20, 153,278,998.80 and 86,880,498.40 is: 130,320,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,185,999.20 : 153,278,998.80 = 86,880,498.40 : x
  2. Step 2: Convert to fraction form
    102,185,999.20/153,278,998.80 = 86,880,498.40/x
  3. Step 3: Cross multiply
    102,185,999.20x = 153,278,998.80 × 86,880,498.40
  4. Step 4: Simplify right side
    102,185,999.20x = 13,316,955,809,997,004
  5. Step 5: Solve for x
    x = 13,316,955,809,997,004/102,185,999.20
  6. Step 6: Final answer
    x = 130,320,747.60

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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.