Home / 430,066,888.47-645,197,392.25-130,962,571.12

Finding the Fourth Proportional to 430,066,888.47, 645,197,392.25 and 130,962,571.12

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Solution

The fourth proportional to 430,066,888.47, 645,197,392.25 and 130,962,571.12 is: 196,473,412.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,066,888.47 : 645,197,392.25 = 130,962,571.12 : x
  2. Step 2: Convert to fraction form
    430,066,888.47/645,197,392.25 = 130,962,571.12/x
  3. Step 3: Cross multiply
    430,066,888.47x = 645,197,392.25 × 130,962,571.12
  4. Step 4: Simplify right side
    430,066,888.47x = 84,496,709,371,056,432
  5. Step 5: Solve for x
    x = 84,496,709,371,056,432/430,066,888.47
  6. Step 6: Final answer
    x = 196,473,412.94

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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.