Home / 38,890,820,336.37-53,669,386,523.13-21,069,477,842.37

Finding the Fourth Proportional to 38,890,820,336.37, 53,669,386,523.13 and 21,069,477,842.37

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Solution

The fourth proportional to 38,890,820,336.37, 53,669,386,523.13 and 21,069,477,842.37 is: 29,075,908,926.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,890,820,336.37 : 53,669,386,523.13 = 21,069,477,842.37 : x
  2. Step 2: Convert to fraction form
    38,890,820,336.37/53,669,386,523.13 = 21,069,477,842.37/x
  3. Step 3: Cross multiply
    38,890,820,336.37x = 53,669,386,523.13 × 21,069,477,842.37
  4. Step 4: Simplify right side
    38,890,820,336.37x = 1,130,785,950,162,678,448,128
  5. Step 5: Solve for x
    x = 1,130,785,950,162,678,448,128/38,890,820,336.37
  6. Step 6: Final answer
    x = 29,075,908,926.13

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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.