Home / 2,911,661.43-4,018,108.77-1,688,692.16

Finding the Fourth Proportional to 2,911,661.43, 4,018,108.77 and 1,688,692.16

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Solution

The fourth proportional to 2,911,661.43, 4,018,108.77 and 1,688,692.16 is: 2,330,404.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911,661.43 : 4,018,108.77 = 1,688,692.16 : x
  2. Step 2: Convert to fraction form
    2,911,661.43/4,018,108.77 = 1,688,692.16/x
  3. Step 3: Cross multiply
    2,911,661.43x = 4,018,108.77 × 1,688,692.16
  4. Step 4: Simplify right side
    2,911,661.43x = 6,785,348,757,835.70
  5. Step 5: Solve for x
    x = 6,785,348,757,835.70/2,911,661.43
  6. Step 6: Final answer
    x = 2,330,404.45

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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.