Home / 13,879,971.95-19,154,959.87-7,685,018.79

Finding the Fourth Proportional to 13,879,971.95, 19,154,959.87 and 7,685,018.79

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Solution

The fourth proportional to 13,879,971.95, 19,154,959.87 and 7,685,018.79 is: 10,605,657.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879,971.95 : 19,154,959.87 = 7,685,018.79 : x
  2. Step 2: Convert to fraction form
    13,879,971.95/19,154,959.87 = 7,685,018.79/x
  3. Step 3: Cross multiply
    13,879,971.95x = 19,154,959.87 × 7,685,018.79
  4. Step 4: Simplify right side
    13,879,971.95x = 147,206,226,484,220.84
  5. Step 5: Solve for x
    x = 147,206,226,484,220.84/13,879,971.95
  6. Step 6: Final answer
    x = 10,605,657.35

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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.