Home / 478,689,387.40-718,034,081.10-187,459,719.40

Finding the Fourth Proportional to 478,689,387.40, 718,034,081.10 and 187,459,719.40

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Solution

The fourth proportional to 478,689,387.40, 718,034,081.10 and 187,459,719.40 is: 281,189,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,689,387.40 : 718,034,081.10 = 187,459,719.40 : x
  2. Step 2: Convert to fraction form
    478,689,387.40/718,034,081.10 = 187,459,719.40/x
  3. Step 3: Cross multiply
    478,689,387.40x = 718,034,081.10 × 187,459,719.40
  4. Step 4: Simplify right side
    478,689,387.40x = 134,602,467,362,642,848
  5. Step 5: Solve for x
    x = 134,602,467,362,642,848/478,689,387.40
  6. Step 6: Final answer
    x = 281,189,579.10

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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.