Home / 28,258,316,680.59-38,997,308,852.25-15,571,869,561.57

Finding the Fourth Proportional to 28,258,316,680.59, 38,997,308,852.25 and 15,571,869,561.57

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Solution

The fourth proportional to 28,258,316,680.59, 38,997,308,852.25 and 15,571,869,561.57 is: 21,489,638,380.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,258,316,680.59 : 38,997,308,852.25 = 15,571,869,561.57 : x
  2. Step 2: Convert to fraction form
    28,258,316,680.59/38,997,308,852.25 = 15,571,869,561.57/x
  3. Step 3: Cross multiply
    28,258,316,680.59x = 38,997,308,852.25 × 15,571,869,561.57
  4. Step 4: Simplify right side
    28,258,316,680.59x = 607,261,006,699,496,079,360
  5. Step 5: Solve for x
    x = 607,261,006,699,496,079,360/28,258,316,680.59
  6. Step 6: Final answer
    x = 21,489,638,380.22

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Double scale
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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.