Home / 7,871,938.07-10,862,938.89-4,387,091.40

Finding the Fourth Proportional to 7,871,938.07, 10,862,938.89 and 4,387,091.40

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Solution

The fourth proportional to 7,871,938.07, 10,862,938.89 and 4,387,091.40 is: 6,053,999.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,871,938.07 : 10,862,938.89 = 4,387,091.40 : x
  2. Step 2: Convert to fraction form
    7,871,938.07/10,862,938.89 = 4,387,091.40/x
  3. Step 3: Cross multiply
    7,871,938.07x = 10,862,938.89 × 4,387,091.40
  4. Step 4: Simplify right side
    7,871,938.07x = 47,656,705,783,044.55
  5. Step 5: Solve for x
    x = 47,656,705,783,044.55/7,871,938.07
  6. Step 6: Final answer
    x = 6,053,999.08

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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.