Home / 76,871,545.36-105,986,505.21-64,159,504.28

Finding the Fourth Proportional to 76,871,545.36, 105,986,505.21 and 64,159,504.28

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Solution

The fourth proportional to 76,871,545.36, 105,986,505.21 and 64,159,504.28 is: 88,459,801.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,871,545.36 : 105,986,505.21 = 64,159,504.28 : x
  2. Step 2: Convert to fraction form
    76,871,545.36/105,986,505.21 = 64,159,504.28/x
  3. Step 3: Cross multiply
    76,871,545.36x = 105,986,505.21 × 64,159,504.28
  4. Step 4: Simplify right side
    76,871,545.36x = 6,800,041,634,322,440
  5. Step 5: Solve for x
    x = 6,800,041,634,322,440/76,871,545.36
  6. Step 6: Final answer
    x = 88,459,801.38

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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.