Home / 287,535,075.72-430,863,733.18-170,720,400.04

Finding the Fourth Proportional to 287,535,075.72, 430,863,733.18 and 170,720,400.04

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Solution

The fourth proportional to 287,535,075.72, 430,863,733.18 and 170,720,400.04 is: 255,820,020.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,535,075.72 : 430,863,733.18 = 170,720,400.04 : x
  2. Step 2: Convert to fraction form
    287,535,075.72/430,863,733.18 = 170,720,400.04/x
  3. Step 3: Cross multiply
    287,535,075.72x = 430,863,733.18 × 170,720,400.04
  4. Step 4: Simplify right side
    287,535,075.72x = 73,557,228,891,217,424
  5. Step 5: Solve for x
    x = 73,557,228,891,217,424/287,535,075.72
  6. Step 6: Final answer
    x = 255,820,020.24

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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.