Home / 7,838,992,872-10,810,543,720.80-5,721,094,140.48

Finding the Fourth Proportional to 7,838,992,872, 10,810,543,720.80 and 5,721,094,140.48

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Solution

The fourth proportional to 7,838,992,872, 10,810,543,720.80 and 5,721,094,140.48 is: 7,889,806,681.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,838,992,872 : 10,810,543,720.80 = 5,721,094,140.48 : x
  2. Step 2: Convert to fraction form
    7,838,992,872/10,810,543,720.80 = 5,721,094,140.48/x
  3. Step 3: Cross multiply
    7,838,992,872x = 10,810,543,720.80 × 5,721,094,140.48
  4. Step 4: Simplify right side
    7,838,992,872x = 61,848,138,336,471,728,128
  5. Step 5: Solve for x
    x = 61,848,138,336,471,728,128/7,838,992,872
  6. Step 6: Final answer
    x = 7,889,806,681.34

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1.5x scale

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.