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Finding the Fourth Proportional to 570,158,950.50, 786,819,351.96 and 309,398,566.50

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Solution

The fourth proportional to 570,158,950.50, 786,819,351.96 and 309,398,566.50 is: 426,970,021.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,158,950.50 : 786,819,351.96 = 309,398,566.50 : x
  2. Step 2: Convert to fraction form
    570,158,950.50/786,819,351.96 = 309,398,566.50/x
  3. Step 3: Cross multiply
    570,158,950.50x = 786,819,351.96 × 309,398,566.50
  4. Step 4: Simplify right side
    570,158,950.50x = 243,440,779,590,882,976
  5. Step 5: Solve for x
    x = 243,440,779,590,882,976/570,158,950.50
  6. Step 6: Final answer
    x = 426,970,021.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.