Home / 907,128,220.70-1,360,692,331.05-447,963,196.70

Finding the Fourth Proportional to 907,128,220.70, 1,360,692,331.05 and 447,963,196.70

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Solution

The fourth proportional to 907,128,220.70, 1,360,692,331.05 and 447,963,196.70 is: 671,944,795.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,128,220.70 : 1,360,692,331.05 = 447,963,196.70 : x
  2. Step 2: Convert to fraction form
    907,128,220.70/1,360,692,331.05 = 447,963,196.70/x
  3. Step 3: Cross multiply
    907,128,220.70x = 1,360,692,331.05 × 447,963,196.70
  4. Step 4: Simplify right side
    907,128,220.70x = 609,540,086,342,332,672
  5. Step 5: Solve for x
    x = 609,540,086,342,332,672/907,128,220.70
  6. Step 6: Final answer
    x = 671,944,795.05

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Double scale
Find fourth proportional to 907,128,221.70, 1,360,692,332.55 and 447,963,197.70
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.