Home / 309,113,257.40-463,669,886.10-165,786,025.40

Finding the Fourth Proportional to 309,113,257.40, 463,669,886.10 and 165,786,025.40

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Solution

The fourth proportional to 309,113,257.40, 463,669,886.10 and 165,786,025.40 is: 248,679,038.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,113,257.40 : 463,669,886.10 = 165,786,025.40 : x
  2. Step 2: Convert to fraction form
    309,113,257.40/463,669,886.10 = 165,786,025.40/x
  3. Step 3: Cross multiply
    309,113,257.40x = 463,669,886.10 × 165,786,025.40
  4. Step 4: Simplify right side
    309,113,257.40x = 76,869,987,514,189,712
  5. Step 5: Solve for x
    x = 76,869,987,514,189,712/309,113,257.40
  6. Step 6: Final answer
    x = 248,679,038.10

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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.