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Finding the Fourth Proportional to 878,482,918.98, 1,212,328,738.98 and 482,005,803.42

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Solution

The fourth proportional to 878,482,918.98, 1,212,328,738.98 and 482,005,803.42 is: 665,180,250.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,482,918.98 : 1,212,328,738.98 = 482,005,803.42 : x
  2. Step 2: Convert to fraction form
    878,482,918.98/1,212,328,738.98 = 482,005,803.42/x
  3. Step 3: Cross multiply
    878,482,918.98x = 1,212,328,738.98 × 482,005,803.42
  4. Step 4: Simplify right side
    878,482,918.98x = 584,349,487,841,210,368
  5. Step 5: Solve for x
    x = 584,349,487,841,210,368/878,482,918.98
  6. Step 6: Final answer
    x = 665,180,250.20

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Double scale
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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.