Home / 30,636,038-42,277,791.72-16,697,548.40

Finding the Fourth Proportional to 30,636,038, 42,277,791.72 and 16,697,548.40

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Solution

The fourth proportional to 30,636,038, 42,277,791.72 and 16,697,548.40 is: 23,042,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,636,038 : 42,277,791.72 = 16,697,548.40 : x
  2. Step 2: Convert to fraction form
    30,636,038/42,277,791.72 = 16,697,548.40/x
  3. Step 3: Cross multiply
    30,636,038x = 42,277,791.72 × 16,697,548.40
  4. Step 4: Simplify right side
    30,636,038x = 705,935,473,489,819.25
  5. Step 5: Solve for x
    x = 705,935,473,489,819.25/30,636,038
  6. Step 6: Final answer
    x = 23,042,649.10

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1.5x scale

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.