Home / 78,558,816.60-108,406,904.45-43,269,756.39

Finding the Fourth Proportional to 78,558,816.60, 108,406,904.45 and 43,269,756.39

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Solution

The fourth proportional to 78,558,816.60, 108,406,904.45 and 43,269,756.39 is: 59,709,916.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,558,816.60 : 108,406,904.45 = 43,269,756.39 : x
  2. Step 2: Convert to fraction form
    78,558,816.60/108,406,904.45 = 43,269,756.39/x
  3. Step 3: Cross multiply
    78,558,816.60x = 108,406,904.45 × 43,269,756.39
  4. Step 4: Simplify right side
    78,558,816.60x = 4,690,740,346,329,158
  5. Step 5: Solve for x
    x = 4,690,740,346,329,158/78,558,816.60
  6. Step 6: Final answer
    x = 59,709,916.08

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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.