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Finding the Fourth Proportional to 570,291,281.76, 788,441,246.58 and 421,377,533.22

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Solution

The fourth proportional to 570,291,281.76, 788,441,246.58 and 421,377,533.22 is: 582,564,451.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,291,281.76 : 788,441,246.58 = 421,377,533.22 : x
  2. Step 2: Convert to fraction form
    570,291,281.76/788,441,246.58 = 421,377,533.22/x
  3. Step 3: Cross multiply
    570,291,281.76x = 788,441,246.58 × 421,377,533.22
  4. Step 4: Simplify right side
    570,291,281.76x = 332,231,427,572,782,208
  5. Step 5: Solve for x
    x = 332,231,427,572,782,208/570,291,281.76
  6. Step 6: Final answer
    x = 582,564,451.18

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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.