Home / 287,535,058.40-430,863,707.28-170,720,382.80

Finding the Fourth Proportional to 287,535,058.40, 430,863,707.28 and 170,720,382.80

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Solution

The fourth proportional to 287,535,058.40, 430,863,707.28 and 170,720,382.80 is: 255,819,994.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,535,058.40 : 430,863,707.28 = 170,720,382.80 : x
  2. Step 2: Convert to fraction form
    287,535,058.40/430,863,707.28 = 170,720,382.80/x
  3. Step 3: Cross multiply
    287,535,058.40x = 430,863,707.28 × 170,720,382.80
  4. Step 4: Simplify right side
    287,535,058.40x = 73,557,217,041,468,752
  5. Step 5: Solve for x
    x = 73,557,217,041,468,752/287,535,058.40
  6. Step 6: Final answer
    x = 255,819,994.44

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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.