Home / 7,243,392,128.40-10,865,088,192.60-3,937,403,955.60

Finding the Fourth Proportional to 7,243,392,128.40, 10,865,088,192.60 and 3,937,403,955.60

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Solution

The fourth proportional to 7,243,392,128.40, 10,865,088,192.60 and 3,937,403,955.60 is: 5,906,105,933.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243,392,128.40 : 10,865,088,192.60 = 3,937,403,955.60 : x
  2. Step 2: Convert to fraction form
    7,243,392,128.40/10,865,088,192.60 = 3,937,403,955.60/x
  3. Step 3: Cross multiply
    7,243,392,128.40x = 10,865,088,192.60 × 3,937,403,955.60
  4. Step 4: Simplify right side
    7,243,392,128.40x = 42,780,241,227,486,093,312
  5. Step 5: Solve for x
    x = 42,780,241,227,486,093,312/7,243,392,128.40
  6. Step 6: Final answer
    x = 5,906,105,933.40

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Double scale
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Similar ratio
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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.