Home / 20,689,465.49-31,036,774.64-7,041,563.13

Finding the Fourth Proportional to 20,689,465.49, 31,036,774.64 and 7,041,563.13

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Solution

The fourth proportional to 20,689,465.49, 31,036,774.64 and 7,041,563.13 is: 10,563,221.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,465.49 : 31,036,774.64 = 7,041,563.13 : x
  2. Step 2: Convert to fraction form
    20,689,465.49/31,036,774.64 = 7,041,563.13/x
  3. Step 3: Cross multiply
    20,689,465.49x = 31,036,774.64 × 7,041,563.13
  4. Step 4: Simplify right side
    20,689,465.49x = 218,547,407,943,935.22
  5. Step 5: Solve for x
    x = 218,547,407,943,935.22/20,689,465.49
  6. Step 6: Final answer
    x = 10,563,221.56

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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.