Home / 78,499,146.11-108,326,841.63-43,216,599.07

Finding the Fourth Proportional to 78,499,146.11, 108,326,841.63 and 43,216,599.07

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Solution

The fourth proportional to 78,499,146.11, 108,326,841.63 and 43,216,599.07 is: 59,637,816.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,499,146.11 : 108,326,841.63 = 43,216,599.07 : x
  2. Step 2: Convert to fraction form
    78,499,146.11/108,326,841.63 = 43,216,599.07/x
  3. Step 3: Cross multiply
    78,499,146.11x = 108,326,841.63 × 43,216,599.07
  4. Step 4: Simplify right side
    78,499,146.11x = 4,681,517,683,243,095
  5. Step 5: Solve for x
    x = 4,681,517,683,243,095/78,499,146.11
  6. Step 6: Final answer
    x = 59,637,816.65

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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.