Home / 103,478,146.28-142,799,983.56-56,435,333.41

Finding the Fourth Proportional to 103,478,146.28, 142,799,983.56 and 56,435,333.41

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Solution

The fourth proportional to 103,478,146.28, 142,799,983.56 and 56,435,333.41 is: 77,880,837.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,478,146.28 : 142,799,983.56 = 56,435,333.41 : x
  2. Step 2: Convert to fraction form
    103,478,146.28/142,799,983.56 = 56,435,333.41/x
  3. Step 3: Cross multiply
    103,478,146.28x = 142,799,983.56 × 56,435,333.41
  4. Step 4: Simplify right side
    103,478,146.28x = 8,058,964,683,329,619
  5. Step 5: Solve for x
    x = 8,058,964,683,329,619/103,478,146.28
  6. Step 6: Final answer
    x = 77,880,837.39

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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.