Home / 222,492,848.64-307,018,008.36-128,437,297.02

Finding the Fourth Proportional to 222,492,848.64, 307,018,008.36 and 128,437,297.02

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Solution

The fourth proportional to 222,492,848.64, 307,018,008.36 and 128,437,297.02 is: 177,230,699.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,492,848.64 : 307,018,008.36 = 128,437,297.02 : x
  2. Step 2: Convert to fraction form
    222,492,848.64/307,018,008.36 = 128,437,297.02/x
  3. Step 3: Cross multiply
    222,492,848.64x = 307,018,008.36 × 128,437,297.02
  4. Step 4: Simplify right side
    222,492,848.64x = 39,432,563,130,222,160
  5. Step 5: Solve for x
    x = 39,432,563,130,222,160/222,492,848.64
  6. Step 6: Final answer
    x = 177,230,699.19

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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.