Home / 742,922,812.60-1,025,256,429.25-408,420,894.69

Finding the Fourth Proportional to 742,922,812.60, 1,025,256,429.25 and 408,420,894.69

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Solution

The fourth proportional to 742,922,812.60, 1,025,256,429.25 and 408,420,894.69 is: 563,633,450.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,922,812.60 : 1,025,256,429.25 = 408,420,894.69 : x
  2. Step 2: Convert to fraction form
    742,922,812.60/1,025,256,429.25 = 408,420,894.69/x
  3. Step 3: Cross multiply
    742,922,812.60x = 1,025,256,429.25 × 408,420,894.69
  4. Step 4: Simplify right side
    742,922,812.60x = 418,736,148,119,938,624
  5. Step 5: Solve for x
    x = 418,736,148,119,938,624/742,922,812.60
  6. Step 6: Final answer
    x = 563,633,450.23

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1.5x scale

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.