Home / 356,661,182.51-490,447,071.02-309,536,442.28

Finding the Fourth Proportional to 356,661,182.51, 490,447,071.02 and 309,536,442.28

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Solution

The fourth proportional to 356,661,182.51, 490,447,071.02 and 309,536,442.28 is: 425,645,539.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,661,182.51 : 490,447,071.02 = 309,536,442.28 : x
  2. Step 2: Convert to fraction form
    356,661,182.51/490,447,071.02 = 309,536,442.28/x
  3. Step 3: Cross multiply
    356,661,182.51x = 490,447,071.02 × 309,536,442.28
  4. Step 4: Simplify right side
    356,661,182.51x = 151,811,241,492,692,160
  5. Step 5: Solve for x
    x = 151,811,241,492,692,160/356,661,182.51
  6. Step 6: Final answer
    x = 425,645,539.62

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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.