Home / 25,689,623.91-35,417,385-20,408,840.25

Finding the Fourth Proportional to 25,689,623.91, 35,417,385 and 20,408,840.25

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Solution

The fourth proportional to 25,689,623.91, 35,417,385 and 20,408,840.25 is: 28,136,953.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,689,623.91 : 35,417,385 = 20,408,840.25 : x
  2. Step 2: Convert to fraction form
    25,689,623.91/35,417,385 = 20,408,840.25/x
  3. Step 3: Cross multiply
    25,689,623.91x = 35,417,385 × 20,408,840.25
  4. Step 4: Simplify right side
    25,689,623.91x = 722,827,752,537,746.25
  5. Step 5: Solve for x
    x = 722,827,752,537,746.25/25,689,623.91
  6. Step 6: Final answer
    x = 28,136,953.47

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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.