Home / 28,656,005.10-42,984,007.65-19,586,078.70

Finding the Fourth Proportional to 28,656,005.10, 42,984,007.65 and 19,586,078.70

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Solution

The fourth proportional to 28,656,005.10, 42,984,007.65 and 19,586,078.70 is: 29,379,118.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656,005.10 : 42,984,007.65 = 19,586,078.70 : x
  2. Step 2: Convert to fraction form
    28,656,005.10/42,984,007.65 = 19,586,078.70/x
  3. Step 3: Cross multiply
    28,656,005.10x = 42,984,007.65 × 19,586,078.70
  4. Step 4: Simplify right side
    28,656,005.10x = 841,888,156,674,302
  5. Step 5: Solve for x
    x = 841,888,156,674,302/28,656,005.10
  6. Step 6: Final answer
    x = 29,379,118.05

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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.