Home / 528,610,186.51-729,549,315.72-319,767,823.72

Finding the Fourth Proportional to 528,610,186.51, 729,549,315.72 and 319,767,823.72

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Solution

The fourth proportional to 528,610,186.51, 729,549,315.72 and 319,767,823.72 is: 441,320,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,610,186.51 : 729,549,315.72 = 319,767,823.72 : x
  2. Step 2: Convert to fraction form
    528,610,186.51/729,549,315.72 = 319,767,823.72/x
  3. Step 3: Cross multiply
    528,610,186.51x = 729,549,315.72 × 319,767,823.72
  4. Step 4: Simplify right side
    528,610,186.51x = 233,286,396,984,199,616
  5. Step 5: Solve for x
    x = 233,286,396,984,199,616/528,610,186.51
  6. Step 6: Final answer
    x = 441,320,282.77

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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.