Home / 631,891,236.12-947,878,443.63-165,564,078.72

Finding the Fourth Proportional to 631,891,236.12, 947,878,443.63 and 165,564,078.72

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Solution

The fourth proportional to 631,891,236.12, 947,878,443.63 and 165,564,078.72 is: 248,357,015.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,891,236.12 : 947,878,443.63 = 165,564,078.72 : x
  2. Step 2: Convert to fraction form
    631,891,236.12/947,878,443.63 = 165,564,078.72/x
  3. Step 3: Cross multiply
    631,891,236.12x = 947,878,443.63 × 165,564,078.72
  4. Step 4: Simplify right side
    631,891,236.12x = 156,934,621,258,148,416
  5. Step 5: Solve for x
    x = 156,934,621,258,148,416/631,891,236.12
  6. Step 6: Final answer
    x = 248,357,015.08

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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.