Home / 438,273,014.60-657,409,521.90-211,780,598.60

Finding the Fourth Proportional to 438,273,014.60, 657,409,521.90 and 211,780,598.60

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Solution

The fourth proportional to 438,273,014.60, 657,409,521.90 and 211,780,598.60 is: 317,670,897.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,273,014.60 : 657,409,521.90 = 211,780,598.60 : x
  2. Step 2: Convert to fraction form
    438,273,014.60/657,409,521.90 = 211,780,598.60/x
  3. Step 3: Cross multiply
    438,273,014.60x = 657,409,521.90 × 211,780,598.60
  4. Step 4: Simplify right side
    438,273,014.60x = 139,226,582,073,321,808
  5. Step 5: Solve for x
    x = 139,226,582,073,321,808/438,273,014.60
  6. Step 6: Final answer
    x = 317,670,897.90

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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.