Home / 105,192,009.40-157,788,014.10-86,060,133.40

Finding the Fourth Proportional to 105,192,009.40, 157,788,014.10 and 86,060,133.40

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Solution

The fourth proportional to 105,192,009.40, 157,788,014.10 and 86,060,133.40 is: 129,090,200.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,192,009.40 : 157,788,014.10 = 86,060,133.40 : x
  2. Step 2: Convert to fraction form
    105,192,009.40/157,788,014.10 = 86,060,133.40/x
  3. Step 3: Cross multiply
    105,192,009.40x = 157,788,014.10 × 86,060,133.40
  4. Step 4: Simplify right side
    105,192,009.40x = 13,579,257,542,367,082
  5. Step 5: Solve for x
    x = 13,579,257,542,367,082/105,192,009.40
  6. Step 6: Final answer
    x = 129,090,200.10

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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.