Home / 742,154,258.25-1,024,521,570.42-428,827,863.96

Finding the Fourth Proportional to 742,154,258.25, 1,024,521,570.42 and 428,827,863.96

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Solution

The fourth proportional to 742,154,258.25, 1,024,521,570.42 and 428,827,863.96 is: 591,983,932.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,154,258.25 : 1,024,521,570.42 = 428,827,863.96 : x
  2. Step 2: Convert to fraction form
    742,154,258.25/1,024,521,570.42 = 428,827,863.96/x
  3. Step 3: Cross multiply
    742,154,258.25x = 1,024,521,570.42 × 428,827,863.96
  4. Step 4: Simplify right side
    742,154,258.25x = 439,343,396,624,153,280
  5. Step 5: Solve for x
    x = 439,343,396,624,153,280/742,154,258.25
  6. Step 6: Final answer
    x = 591,983,932.91

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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.