Home / 38,698,712,393.36-53,400,816,884.80-21,550,269,864.76

Finding the Fourth Proportional to 38,698,712,393.36, 53,400,816,884.80 and 21,550,269,864.76

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Solution

The fourth proportional to 38,698,712,393.36, 53,400,816,884.80 and 21,550,269,864.76 is: 29,737,475,582.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,698,712,393.36 : 53,400,816,884.80 = 21,550,269,864.76 : x
  2. Step 2: Convert to fraction form
    38,698,712,393.36/53,400,816,884.80 = 21,550,269,864.76/x
  3. Step 3: Cross multiply
    38,698,712,393.36x = 53,400,816,884.80 × 21,550,269,864.76
  4. Step 4: Simplify right side
    38,698,712,393.36x = 1,150,802,014,866,072,403,968
  5. Step 5: Solve for x
    x = 1,150,802,014,866,072,403,968/38,698,712,393.36
  6. Step 6: Final answer
    x = 29,737,475,582.35

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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.