Home / 105,192,020.40-157,788,030.60-86,060,144.40

Finding the Fourth Proportional to 105,192,020.40, 157,788,030.60 and 86,060,144.40

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Solution

The fourth proportional to 105,192,020.40, 157,788,030.60 and 86,060,144.40 is: 129,090,216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,192,020.40 : 157,788,030.60 = 86,060,144.40 : x
  2. Step 2: Convert to fraction form
    105,192,020.40/157,788,030.60 = 86,060,144.40/x
  3. Step 3: Cross multiply
    105,192,020.40x = 157,788,030.60 × 86,060,144.40
  4. Step 4: Simplify right side
    105,192,020.40x = 13,579,260,698,027,620
  5. Step 5: Solve for x
    x = 13,579,260,698,027,620/105,192,020.40
  6. Step 6: Final answer
    x = 129,090,216.60

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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.