Home / 139,888,526.66-193,046,352.74-77,163,209.69

Finding the Fourth Proportional to 139,888,526.66, 193,046,352.74 and 77,163,209.69

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Solution

The fourth proportional to 139,888,526.66, 193,046,352.74 and 77,163,209.69 is: 106,485,331.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,888,526.66 : 193,046,352.74 = 77,163,209.69 : x
  2. Step 2: Convert to fraction form
    139,888,526.66/193,046,352.74 = 77,163,209.69/x
  3. Step 3: Cross multiply
    139,888,526.66x = 193,046,352.74 × 77,163,209.69
  4. Step 4: Simplify right side
    139,888,526.66x = 14,896,076,195,015,280
  5. Step 5: Solve for x
    x = 14,896,076,195,015,280/139,888,526.66
  6. Step 6: Final answer
    x = 106,485,331.94

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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.