Home / 216,799,997.12-299,184,283.20-117,680,680.16

Finding the Fourth Proportional to 216,799,997.12, 299,184,283.20 and 117,680,680.16

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Solution

The fourth proportional to 216,799,997.12, 299,184,283.20 and 117,680,680.16 is: 162,399,494.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,799,997.12 : 299,184,283.20 = 117,680,680.16 : x
  2. Step 2: Convert to fraction form
    216,799,997.12/299,184,283.20 = 117,680,680.16/x
  3. Step 3: Cross multiply
    216,799,997.12x = 299,184,283.20 × 117,680,680.16
  4. Step 4: Simplify right side
    216,799,997.12x = 35,208,209,940,158,060
  5. Step 5: Solve for x
    x = 35,208,209,940,158,060/216,799,997.12
  6. Step 6: Final answer
    x = 162,399,494.50

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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.