Home / 287,064,201.40-430,596,302.10-133,725,758.20

Finding the Fourth Proportional to 287,064,201.40, 430,596,302.10 and 133,725,758.20

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Solution

The fourth proportional to 287,064,201.40, 430,596,302.10 and 133,725,758.20 is: 200,588,637.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,064,201.40 : 430,596,302.10 = 133,725,758.20 : x
  2. Step 2: Convert to fraction form
    287,064,201.40/430,596,302.10 = 133,725,758.20/x
  3. Step 3: Cross multiply
    287,064,201.40x = 430,596,302.10 × 133,725,758.20
  4. Step 4: Simplify right side
    287,064,201.40x = 57,581,816,976,438,760
  5. Step 5: Solve for x
    x = 57,581,816,976,438,760/287,064,201.40
  6. Step 6: Final answer
    x = 200,588,637.30

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1.5x scale

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.