Home / 12,931,974,000.40-19,397,961,000.60-10,142,546,479.60

Finding the Fourth Proportional to 12,931,974,000.40, 19,397,961,000.60 and 10,142,546,479.60

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Solution

The fourth proportional to 12,931,974,000.40, 19,397,961,000.60 and 10,142,546,479.60 is: 15,213,819,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931,974,000.40 : 19,397,961,000.60 = 10,142,546,479.60 : x
  2. Step 2: Convert to fraction form
    12,931,974,000.40/19,397,961,000.60 = 10,142,546,479.60/x
  3. Step 3: Cross multiply
    12,931,974,000.40x = 19,397,961,000.60 × 10,142,546,479.60
  4. Step 4: Simplify right side
    12,931,974,000.40x = 196,744,721,058,053,619,712
  5. Step 5: Solve for x
    x = 196,744,721,058,053,619,712/12,931,974,000.40
  6. Step 6: Final answer
    x = 15,213,819,719.40

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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.