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Finding the Fourth Proportional to 559,498,521.60, 838,351,987.20 and 354,660,019.20

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Solution

The fourth proportional to 559,498,521.60, 838,351,987.20 and 354,660,019.20 is: 531,422,193.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,498,521.60 : 838,351,987.20 = 354,660,019.20 : x
  2. Step 2: Convert to fraction form
    559,498,521.60/838,351,987.20 = 354,660,019.20/x
  3. Step 3: Cross multiply
    559,498,521.60x = 838,351,987.20 × 354,660,019.20
  4. Step 4: Simplify right side
    559,498,521.60x = 297,329,931,876,710,144
  5. Step 5: Solve for x
    x = 297,329,931,876,710,144/559,498,521.60
  6. Step 6: Final answer
    x = 531,422,193.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.