Home / 765,411,025.80-1,147,183,794.12-396,742,727.72

Finding the Fourth Proportional to 765,411,025.80, 1,147,183,794.12 and 396,742,727.72

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Solution

The fourth proportional to 765,411,025.80, 1,147,183,794.12 and 396,742,727.72 is: 594,630,613.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,411,025.80 : 1,147,183,794.12 = 396,742,727.72 : x
  2. Step 2: Convert to fraction form
    765,411,025.80/1,147,183,794.12 = 396,742,727.72/x
  3. Step 3: Cross multiply
    765,411,025.80x = 1,147,183,794.12 × 396,742,727.72
  4. Step 4: Simplify right side
    765,411,025.80x = 455,136,827,675,347,712
  5. Step 5: Solve for x
    x = 455,136,827,675,347,712/765,411,025.80
  6. Step 6: Final answer
    x = 594,630,613.27

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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.