Home / 12,690,440,354.88-19,038,889,594.08-7,454,476,820.16

Finding the Fourth Proportional to 12,690,440,354.88, 19,038,889,594.08 and 7,454,476,820.16

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Solution

The fourth proportional to 12,690,440,354.88, 19,038,889,594.08 and 7,454,476,820.16 is: 11,183,612,009.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690,440,354.88 : 19,038,889,594.08 = 7,454,476,820.16 : x
  2. Step 2: Convert to fraction form
    12,690,440,354.88/19,038,889,594.08 = 7,454,476,820.16/x
  3. Step 3: Cross multiply
    12,690,440,354.88x = 19,038,889,594.08 × 7,454,476,820.16
  4. Step 4: Simplify right side
    12,690,440,354.88x = 141,924,961,160,654,798,848
  5. Step 5: Solve for x
    x = 141,924,961,160,654,798,848/12,690,440,354.88
  6. Step 6: Final answer
    x = 11,183,612,009.66

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1.5x scale

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.