Home / 742,933,201.60-1,114,399,802.40-420,446,929.60

Finding the Fourth Proportional to 742,933,201.60, 1,114,399,802.40 and 420,446,929.60

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Solution

The fourth proportional to 742,933,201.60, 1,114,399,802.40 and 420,446,929.60 is: 630,670,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,933,201.60 : 1,114,399,802.40 = 420,446,929.60 : x
  2. Step 2: Convert to fraction form
    742,933,201.60/1,114,399,802.40 = 420,446,929.60/x
  3. Step 3: Cross multiply
    742,933,201.60x = 1,114,399,802.40 × 420,446,929.60
  4. Step 4: Simplify right side
    742,933,201.60x = 468,545,975,265,926,784
  5. Step 5: Solve for x
    x = 468,545,975,265,926,784/742,933,201.60
  6. Step 6: Final answer
    x = 630,670,394.40

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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.