Home / 312,130,397.18-430,739,798.32-186,682,590.93

Finding the Fourth Proportional to 312,130,397.18, 430,739,798.32 and 186,682,590.93

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Solution

The fourth proportional to 312,130,397.18, 430,739,798.32 and 186,682,590.93 is: 257,621,885.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,130,397.18 : 430,739,798.32 = 186,682,590.93 : x
  2. Step 2: Convert to fraction form
    312,130,397.18/430,739,798.32 = 186,682,590.93/x
  3. Step 3: Cross multiply
    312,130,397.18x = 430,739,798.32 × 186,682,590.93
  4. Step 4: Simplify right side
    312,130,397.18x = 80,411,621,568,891,888
  5. Step 5: Solve for x
    x = 80,411,621,568,891,888/312,130,397.18
  6. Step 6: Final answer
    x = 257,621,885.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.