Home / 507,191,368.64-760,256,064.54-212,255,470.10

Finding the Fourth Proportional to 507,191,368.64, 760,256,064.54 and 212,255,470.10

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Solution

The fourth proportional to 507,191,368.64, 760,256,064.54 and 212,255,470.10 is: 318,160,990.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,191,368.64 : 760,256,064.54 = 212,255,470.10 : x
  2. Step 2: Convert to fraction form
    507,191,368.64/760,256,064.54 = 212,255,470.10/x
  3. Step 3: Cross multiply
    507,191,368.64x = 760,256,064.54 × 212,255,470.10
  4. Step 4: Simplify right side
    507,191,368.64x = 161,368,508,377,214,272
  5. Step 5: Solve for x
    x = 161,368,508,377,214,272/507,191,368.64
  6. Step 6: Final answer
    x = 318,160,990.81

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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.