Home / 20,478,027.15-30,711,442.01-7,697,549.07

Finding the Fourth Proportional to 20,478,027.15, 30,711,442.01 and 7,697,549.07

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Solution

The fourth proportional to 20,478,027.15, 30,711,442.01 and 7,697,549.07 is: 11,544,219.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,478,027.15 : 30,711,442.01 = 7,697,549.07 : x
  2. Step 2: Convert to fraction form
    20,478,027.15/30,711,442.01 = 7,697,549.07/x
  3. Step 3: Cross multiply
    20,478,027.15x = 30,711,442.01 × 7,697,549.07
  4. Step 4: Simplify right side
    20,478,027.15x = 236,402,831,843,946.69
  5. Step 5: Solve for x
    x = 236,402,831,843,946.69/20,478,027.15
  6. Step 6: Final answer
    x = 11,544,219.08

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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.