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Finding the Fourth Proportional to 173,855,812.80, 260,783,719.20 and 171,168,427.20

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Solution

The fourth proportional to 173,855,812.80, 260,783,719.20 and 171,168,427.20 is: 256,752,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,855,812.80 : 260,783,719.20 = 171,168,427.20 : x
  2. Step 2: Convert to fraction form
    173,855,812.80/260,783,719.20 = 171,168,427.20/x
  3. Step 3: Cross multiply
    173,855,812.80x = 260,783,719.20 × 171,168,427.20
  4. Step 4: Simplify right side
    173,855,812.80x = 44,637,939,054,830,440
  5. Step 5: Solve for x
    x = 44,637,939,054,830,440/173,855,812.80
  6. Step 6: Final answer
    x = 256,752,640.80

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1.5x scale

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.