Home / 145,151,289.72-217,769,456.34-42,917,988.60

Finding the Fourth Proportional to 145,151,289.72, 217,769,456.34 and 42,917,988.60

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Solution

The fourth proportional to 145,151,289.72, 217,769,456.34 and 42,917,988.60 is: 64,389,555.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,151,289.72 : 217,769,456.34 = 42,917,988.60 : x
  2. Step 2: Convert to fraction form
    145,151,289.72/217,769,456.34 = 42,917,988.60/x
  3. Step 3: Cross multiply
    145,151,289.72x = 217,769,456.34 × 42,917,988.60
  4. Step 4: Simplify right side
    145,151,289.72x = 9,346,227,044,628,318
  5. Step 5: Solve for x
    x = 9,346,227,044,628,318/145,151,289.72
  6. Step 6: Final answer
    x = 64,389,555.63

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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.