Home / 387,073,312.80-579,938,122.80-362,886,842.40

Finding the Fourth Proportional to 387,073,312.80, 579,938,122.80 and 362,886,842.40

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Solution

The fourth proportional to 387,073,312.80, 579,938,122.80 and 362,886,842.40 is: 543,700,397.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,073,312.80 : 579,938,122.80 = 362,886,842.40 : x
  2. Step 2: Convert to fraction form
    387,073,312.80/579,938,122.80 = 362,886,842.40/x
  3. Step 3: Cross multiply
    387,073,312.80x = 579,938,122.80 × 362,886,842.40
  4. Step 4: Simplify right side
    387,073,312.80x = 210,451,914,170,275,424
  5. Step 5: Solve for x
    x = 210,451,914,170,275,424/387,073,312.80
  6. Step 6: Final answer
    x = 543,700,397.86

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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.