Home / 102,699,487.76-141,728,720.57-56,289,860.60

Finding the Fourth Proportional to 102,699,487.76, 141,728,720.57 and 56,289,860.60

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Solution

The fourth proportional to 102,699,487.76, 141,728,720.57 and 56,289,860.60 is: 77,681,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,699,487.76 : 141,728,720.57 = 56,289,860.60 : x
  2. Step 2: Convert to fraction form
    102,699,487.76/141,728,720.57 = 56,289,860.60/x
  3. Step 3: Cross multiply
    102,699,487.76x = 141,728,720.57 × 56,289,860.60
  4. Step 4: Simplify right side
    102,699,487.76x = 7,977,889,922,911,559
  5. Step 5: Solve for x
    x = 7,977,889,922,911,559/102,699,487.76
  6. Step 6: Final answer
    x = 77,681,886.22

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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.