Home / 30,569,144.12-42,185,417.46-16,817,813

Finding the Fourth Proportional to 30,569,144.12, 42,185,417.46 and 16,817,813

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Solution

The fourth proportional to 30,569,144.12, 42,185,417.46 and 16,817,813 is: 23,208,581.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,569,144.12 : 42,185,417.46 = 16,817,813 : x
  2. Step 2: Convert to fraction form
    30,569,144.12/42,185,417.46 = 16,817,813/x
  3. Step 3: Cross multiply
    30,569,144.12x = 42,185,417.46 × 16,817,813
  4. Step 4: Simplify right side
    30,569,144.12x = 709,466,462,169,215
  5. Step 5: Solve for x
    x = 709,466,462,169,215/30,569,144.12
  6. Step 6: Final answer
    x = 23,208,581.16

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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.