Home / 742,154,265.25-1,024,521,580.08-428,827,870.96

Finding the Fourth Proportional to 742,154,265.25, 1,024,521,580.08 and 428,827,870.96

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Solution

The fourth proportional to 742,154,265.25, 1,024,521,580.08 and 428,827,870.96 is: 591,983,942.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,154,265.25 : 1,024,521,580.08 = 428,827,870.96 : x
  2. Step 2: Convert to fraction form
    742,154,265.25/1,024,521,580.08 = 428,827,870.96/x
  3. Step 3: Cross multiply
    742,154,265.25x = 1,024,521,580.08 × 428,827,870.96
  4. Step 4: Simplify right side
    742,154,265.25x = 439,343,407,938,281,536
  5. Step 5: Solve for x
    x = 439,343,407,938,281,536/742,154,265.25
  6. Step 6: Final answer
    x = 591,983,942.57

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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.