Home / 83,871,681.88-115,778,632.08-56,385,553.36

Finding the Fourth Proportional to 83,871,681.88, 115,778,632.08 and 56,385,553.36

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Solution

The fourth proportional to 83,871,681.88, 115,778,632.08 and 56,385,553.36 is: 77,836,071.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,871,681.88 : 115,778,632.08 = 56,385,553.36 : x
  2. Step 2: Convert to fraction form
    83,871,681.88/115,778,632.08 = 56,385,553.36/x
  3. Step 3: Cross multiply
    83,871,681.88x = 115,778,632.08 × 56,385,553.36
  4. Step 4: Simplify right side
    83,871,681.88x = 6,528,242,237,094,648
  5. Step 5: Solve for x
    x = 6,528,242,237,094,648/83,871,681.88
  6. Step 6: Final answer
    x = 77,836,071.61

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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.