Home / 430,543,700.88-645,290,882.51-223,167,783.22

Finding the Fourth Proportional to 430,543,700.88, 645,290,882.51 and 223,167,783.22

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Solution

The fourth proportional to 430,543,700.88, 645,290,882.51 and 223,167,783.22 is: 334,479,718.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,543,700.88 : 645,290,882.51 = 223,167,783.22 : x
  2. Step 2: Convert to fraction form
    430,543,700.88/645,290,882.51 = 223,167,783.22/x
  3. Step 3: Cross multiply
    430,543,700.88x = 645,290,882.51 × 223,167,783.22
  4. Step 4: Simplify right side
    430,543,700.88x = 144,008,135,779,105,104
  5. Step 5: Solve for x
    x = 144,008,135,779,105,104/430,543,700.88
  6. Step 6: Final answer
    x = 334,479,718.28

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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.