Home / 287,535,058.72-430,863,707.76-170,720,383.04

Finding the Fourth Proportional to 287,535,058.72, 430,863,707.76 and 170,720,383.04

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Solution

The fourth proportional to 287,535,058.72, 430,863,707.76 and 170,720,383.04 is: 255,819,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,535,058.72 : 430,863,707.76 = 170,720,383.04 : x
  2. Step 2: Convert to fraction form
    287,535,058.72/430,863,707.76 = 170,720,383.04/x
  3. Step 3: Cross multiply
    287,535,058.72x = 430,863,707.76 × 170,720,383.04
  4. Step 4: Simplify right side
    287,535,058.72x = 73,557,217,226,821,808
  5. Step 5: Solve for x
    x = 73,557,217,226,821,808/287,535,058.72
  6. Step 6: Final answer
    x = 255,819,994.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.