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Finding the Fourth Proportional to 570,162,946.48, 786,824,866.12 and 309,402,562.48

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Solution

The fourth proportional to 570,162,946.48, 786,824,866.12 and 309,402,562.48 is: 426,975,536.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,162,946.48 : 786,824,866.12 = 309,402,562.48 : x
  2. Step 2: Convert to fraction form
    570,162,946.48/786,824,866.12 = 309,402,562.48/x
  3. Step 3: Cross multiply
    570,162,946.48x = 786,824,866.12 × 309,402,562.48
  4. Step 4: Simplify right side
    570,162,946.48x = 243,445,629,800,510,944
  5. Step 5: Solve for x
    x = 243,445,629,800,510,944/570,162,946.48
  6. Step 6: Final answer
    x = 426,975,536.21

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Why These Related Problems?

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