Home / 13,929,355-19,222,509.81-7,817,783.50

Finding the Fourth Proportional to 13,929,355, 19,222,509.81 and 7,817,783.50

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Solution

The fourth proportional to 13,929,355, 19,222,509.81 and 7,817,783.50 is: 10,788,541.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929,355 : 19,222,509.81 = 7,817,783.50 : x
  2. Step 2: Convert to fraction form
    13,929,355/19,222,509.81 = 7,817,783.50/x
  3. Step 3: Cross multiply
    13,929,355x = 19,222,509.81 × 7,817,783.50
  4. Step 4: Simplify right side
    13,929,355x = 150,277,420,021,206.12
  5. Step 5: Solve for x
    x = 150,277,420,021,206.12/13,929,355
  6. Step 6: Final answer
    x = 10,788,541.18

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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.