Home / 430,416,110.10-645,624,165.15-397,159,713.30

Finding the Fourth Proportional to 430,416,110.10, 645,624,165.15 and 397,159,713.30

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Solution

The fourth proportional to 430,416,110.10, 645,624,165.15 and 397,159,713.30 is: 595,739,569.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,416,110.10 : 645,624,165.15 = 397,159,713.30 : x
  2. Step 2: Convert to fraction form
    430,416,110.10/645,624,165.15 = 397,159,713.30/x
  3. Step 3: Cross multiply
    430,416,110.10x = 645,624,165.15 × 397,159,713.30
  4. Step 4: Simplify right side
    430,416,110.10x = 256,415,908,330,525,856
  5. Step 5: Solve for x
    x = 256,415,908,330,525,856/430,416,110.10
  6. Step 6: Final answer
    x = 595,739,569.95

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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.