Home / 100,848,406.76-139,167,127.06-56,192,071.68

Finding the Fourth Proportional to 100,848,406.76, 139,167,127.06 and 56,192,071.68

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Solution

The fourth proportional to 100,848,406.76, 139,167,127.06 and 56,192,071.68 is: 77,543,011.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,848,406.76 : 139,167,127.06 = 56,192,071.68 : x
  2. Step 2: Convert to fraction form
    100,848,406.76/139,167,127.06 = 56,192,071.68/x
  3. Step 3: Cross multiply
    100,848,406.76x = 139,167,127.06 × 56,192,071.68
  4. Step 4: Simplify right side
    100,848,406.76x = 7,820,089,178,559,352
  5. Step 5: Solve for x
    x = 7,820,089,178,559,352/100,848,406.76
  6. Step 6: Final answer
    x = 77,543,011.64

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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.