Home / 430,416,187.60-645,624,281.40-397,159,790.80

Finding the Fourth Proportional to 430,416,187.60, 645,624,281.40 and 397,159,790.80

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Solution

The fourth proportional to 430,416,187.60, 645,624,281.40 and 397,159,790.80 is: 595,739,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,416,187.60 : 645,624,281.40 = 397,159,790.80 : x
  2. Step 2: Convert to fraction form
    430,416,187.60/645,624,281.40 = 397,159,790.80/x
  3. Step 3: Cross multiply
    430,416,187.60x = 645,624,281.40 × 397,159,790.80
  4. Step 4: Simplify right side
    430,416,187.60x = 256,416,004,536,224,320
  5. Step 5: Solve for x
    x = 256,416,004,536,224,320/430,416,187.60
  6. Step 6: Final answer
    x = 595,739,686.20

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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.