Home / 520,064,237.83-780,364,557.46-243,743,524.15

Finding the Fourth Proportional to 520,064,237.83, 780,364,557.46 and 243,743,524.15

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Solution

The fourth proportional to 520,064,237.83, 780,364,557.46 and 243,743,524.15 is: 365,740,986.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,064,237.83 : 780,364,557.46 = 243,743,524.15 : x
  2. Step 2: Convert to fraction form
    520,064,237.83/780,364,557.46 = 243,743,524.15/x
  3. Step 3: Cross multiply
    520,064,237.83x = 780,364,557.46 × 243,743,524.15
  4. Step 4: Simplify right side
    520,064,237.83x = 190,208,807,357,055,584
  5. Step 5: Solve for x
    x = 190,208,807,357,055,584/520,064,237.83
  6. Step 6: Final answer
    x = 365,740,986.44

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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.