Home / 124,525,215.70-186,867,539.70-72,709,718.20

Finding the Fourth Proportional to 124,525,215.70, 186,867,539.70 and 72,709,718.20

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Solution

The fourth proportional to 124,525,215.70, 186,867,539.70 and 72,709,718.20 is: 109,111,123.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,525,215.70 : 186,867,539.70 = 72,709,718.20 : x
  2. Step 2: Convert to fraction form
    124,525,215.70/186,867,539.70 = 72,709,718.20/x
  3. Step 3: Cross multiply
    124,525,215.70x = 186,867,539.70 × 72,709,718.20
  4. Step 4: Simplify right side
    124,525,215.70x = 13,587,086,152,314,312
  5. Step 5: Solve for x
    x = 13,587,086,152,314,312/124,525,215.70
  6. Step 6: Final answer
    x = 109,111,123.20

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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.