Home / 28,563,378.30-39,402,886.95-18,239,246.46

Finding the Fourth Proportional to 28,563,378.30, 39,402,886.95 and 18,239,246.46

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Solution

The fourth proportional to 28,563,378.30, 39,402,886.95 and 18,239,246.46 is: 25,160,853.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,563,378.30 : 39,402,886.95 = 18,239,246.46 : x
  2. Step 2: Convert to fraction form
    28,563,378.30/39,402,886.95 = 18,239,246.46/x
  3. Step 3: Cross multiply
    28,563,378.30x = 39,402,886.95 × 18,239,246.46
  4. Step 4: Simplify right side
    28,563,378.30x = 718,678,966,316,567.75
  5. Step 5: Solve for x
    x = 718,678,966,316,567.75/28,563,378.30
  6. Step 6: Final answer
    x = 25,160,853.13

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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.