Home / 151,851,471.16-209,553,912.66-82,235,237.08

Finding the Fourth Proportional to 151,851,471.16, 209,553,912.66 and 82,235,237.08

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Solution

The fourth proportional to 151,851,471.16, 209,553,912.66 and 82,235,237.08 is: 113,484,021.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,851,471.16 : 209,553,912.66 = 82,235,237.08 : x
  2. Step 2: Convert to fraction form
    151,851,471.16/209,553,912.66 = 82,235,237.08/x
  3. Step 3: Cross multiply
    151,851,471.16x = 209,553,912.66 × 82,235,237.08
  4. Step 4: Simplify right side
    151,851,471.16x = 17,232,715,688,636,712
  5. Step 5: Solve for x
    x = 17,232,715,688,636,712/151,851,471.16
  6. Step 6: Final answer
    x = 113,484,021.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.