Home / 38,718,686.17-53,430,150.30-21,077,221.51

Finding the Fourth Proportional to 38,718,686.17, 53,430,150.30 and 21,077,221.51

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Solution

The fourth proportional to 38,718,686.17, 53,430,150.30 and 21,077,221.51 is: 29,085,674.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,718,686.17 : 53,430,150.30 = 21,077,221.51 : x
  2. Step 2: Convert to fraction form
    38,718,686.17/53,430,150.30 = 21,077,221.51/x
  3. Step 3: Cross multiply
    38,718,686.17x = 53,430,150.30 × 21,077,221.51
  4. Step 4: Simplify right side
    38,718,686.17x = 1,126,159,113,292,000.50
  5. Step 5: Solve for x
    x = 1,126,159,113,292,000.50/38,718,686.17
  6. Step 6: Final answer
    x = 29,085,674.76

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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.