Home / 15,303,657.40-21,118,237.74-8,776,949.56

Finding the Fourth Proportional to 15,303,657.40, 21,118,237.74 and 8,776,949.56

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Solution

The fourth proportional to 15,303,657.40, 21,118,237.74 and 8,776,949.56 is: 12,111,726.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,303,657.40 : 21,118,237.74 = 8,776,949.56 : x
  2. Step 2: Convert to fraction form
    15,303,657.40/21,118,237.74 = 8,776,949.56/x
  3. Step 3: Cross multiply
    15,303,657.40x = 21,118,237.74 × 8,776,949.56
  4. Step 4: Simplify right side
    15,303,657.40x = 185,353,707,440,068.41
  5. Step 5: Solve for x
    x = 185,353,707,440,068.41/15,303,657.40
  6. Step 6: Final answer
    x = 12,111,726.14

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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.