Home / 14,507,950.68-20,020,971.95-7,981,440

Finding the Fourth Proportional to 14,507,950.68, 20,020,971.95 and 7,981,440

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Solution

The fourth proportional to 14,507,950.68, 20,020,971.95 and 7,981,440 is: 11,014,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,507,950.68 : 20,020,971.95 = 7,981,440 : x
  2. Step 2: Convert to fraction form
    14,507,950.68/20,020,971.95 = 7,981,440/x
  3. Step 3: Cross multiply
    14,507,950.68x = 20,020,971.95 × 7,981,440
  4. Step 4: Simplify right side
    14,507,950.68x = 159,796,186,320,700.81
  5. Step 5: Solve for x
    x = 159,796,186,320,700.81/14,507,950.68
  6. Step 6: Final answer
    x = 11,014,387.20

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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.