Home / 38,985,624.36-53,798,417.40-21,580,739.64

Finding the Fourth Proportional to 38,985,624.36, 53,798,417.40 and 21,580,739.64

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Solution

The fourth proportional to 38,985,624.36, 53,798,417.40 and 21,580,739.64 is: 29,780,455.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,985,624.36 : 53,798,417.40 = 21,580,739.64 : x
  2. Step 2: Convert to fraction form
    38,985,624.36/53,798,417.40 = 21,580,739.64/x
  3. Step 3: Cross multiply
    38,985,624.36x = 53,798,417.40 × 21,580,739.64
  4. Step 4: Simplify right side
    38,985,624.36x = 1,161,009,638,953,445.75
  5. Step 5: Solve for x
    x = 1,161,009,638,953,445.75/38,985,624.36
  6. Step 6: Final answer
    x = 29,780,455.18

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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.