Home / 287,029,749.16-430,194,844.38-148,779,137.40

Finding the Fourth Proportional to 287,029,749.16, 430,194,844.38 and 148,779,137.40

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Solution

The fourth proportional to 287,029,749.16, 430,194,844.38 and 148,779,137.40 is: 222,987,401.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,029,749.16 : 430,194,844.38 = 148,779,137.40 : x
  2. Step 2: Convert to fraction form
    287,029,749.16/430,194,844.38 = 148,779,137.40/x
  3. Step 3: Cross multiply
    287,029,749.16x = 430,194,844.38 × 148,779,137.40
  4. Step 4: Simplify right side
    287,029,749.16x = 64,004,017,860,783,640
  5. Step 5: Solve for x
    x = 64,004,017,860,783,640/287,029,749.16
  6. Step 6: Final answer
    x = 222,987,401.30

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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.