Home / 68,242,145.40-102,363,218.10-19,721,582.10

Finding the Fourth Proportional to 68,242,145.40, 102,363,218.10 and 19,721,582.10

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Solution

The fourth proportional to 68,242,145.40, 102,363,218.10 and 19,721,582.10 is: 29,582,373.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,242,145.40 : 102,363,218.10 = 19,721,582.10 : x
  2. Step 2: Convert to fraction form
    68,242,145.40/102,363,218.10 = 19,721,582.10/x
  3. Step 3: Cross multiply
    68,242,145.40x = 102,363,218.10 × 19,721,582.10
  4. Step 4: Simplify right side
    68,242,145.40x = 2,018,764,609,779,356
  5. Step 5: Solve for x
    x = 2,018,764,609,779,356/68,242,145.40
  6. Step 6: Final answer
    x = 29,582,373.15

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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.