Home / 14,404,428.09-19,877,831.42-7,878,037.35

Finding the Fourth Proportional to 14,404,428.09, 19,877,831.42 and 7,878,037.35

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Solution

The fourth proportional to 14,404,428.09, 19,877,831.42 and 7,878,037.35 is: 10,871,538.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,404,428.09 : 19,877,831.42 = 7,878,037.35 : x
  2. Step 2: Convert to fraction form
    14,404,428.09/19,877,831.42 = 7,878,037.35/x
  3. Step 3: Cross multiply
    14,404,428.09x = 19,877,831.42 × 7,878,037.35
  4. Step 4: Simplify right side
    14,404,428.09x = 156,598,298,324,373.34
  5. Step 5: Solve for x
    x = 156,598,298,324,373.34/14,404,428.09
  6. Step 6: Final answer
    x = 10,871,538.76

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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.