Home / 139,102,560.40-208,677,890.76-46,986,969.28

Finding the Fourth Proportional to 139,102,560.40, 208,677,890.76 and 46,986,969.28

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Solution

The fourth proportional to 139,102,560.40, 208,677,890.76 and 46,986,969.28 is: 70,488,577.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,102,560.40 : 208,677,890.76 = 46,986,969.28 : x
  2. Step 2: Convert to fraction form
    139,102,560.40/208,677,890.76 = 46,986,969.28/x
  3. Step 3: Cross multiply
    139,102,560.40x = 208,677,890.76 × 46,986,969.28
  4. Step 4: Simplify right side
    139,102,560.40x = 9,805,141,642,555,316
  5. Step 5: Solve for x
    x = 9,805,141,642,555,316/139,102,560.40
  6. Step 6: Final answer
    x = 70,488,577.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.