Home / 81,878,857.02-112,993,368.95-44,709,395.38

Finding the Fourth Proportional to 81,878,857.02, 112,993,368.95 and 44,709,395.38

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Solution

The fourth proportional to 81,878,857.02, 112,993,368.95 and 44,709,395.38 is: 61,699,263.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,878,857.02 : 112,993,368.95 = 44,709,395.38 : x
  2. Step 2: Convert to fraction form
    81,878,857.02/112,993,368.95 = 44,709,395.38/x
  3. Step 3: Cross multiply
    81,878,857.02x = 112,993,368.95 × 44,709,395.38
  4. Step 4: Simplify right side
    81,878,857.02x = 5,051,865,207,703,766
  5. Step 5: Solve for x
    x = 5,051,865,207,703,766/81,878,857.02
  6. Step 6: Final answer
    x = 61,699,263.91

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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.