Home / 430,439,344.98-645,654,762.54-197,203,899.12

Finding the Fourth Proportional to 430,439,344.98, 645,654,762.54 and 197,203,899.12

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Solution

The fourth proportional to 430,439,344.98, 645,654,762.54 and 197,203,899.12 is: 295,803,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,439,344.98 : 645,654,762.54 = 197,203,899.12 : x
  2. Step 2: Convert to fraction form
    430,439,344.98/645,654,762.54 = 197,203,899.12/x
  3. Step 3: Cross multiply
    430,439,344.98x = 645,654,762.54 × 197,203,899.12
  4. Step 4: Simplify right side
    430,439,344.98x = 127,325,636,658,285,712
  5. Step 5: Solve for x
    x = 127,325,636,658,285,712/430,439,344.98
  6. Step 6: Final answer
    x = 295,803,899.30

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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.