Home / 1,300,655,670.72-1,950,572,345.76-427,113,032.64

Finding the Fourth Proportional to 1,300,655,670.72, 1,950,572,345.76 and 427,113,032.64

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Solution

The fourth proportional to 1,300,655,670.72, 1,950,572,345.76 and 427,113,032.64 is: 640,534,530.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,655,670.72 : 1,950,572,345.76 = 427,113,032.64 : x
  2. Step 2: Convert to fraction form
    1,300,655,670.72/1,950,572,345.76 = 427,113,032.64/x
  3. Step 3: Cross multiply
    1,300,655,670.72x = 1,950,572,345.76 × 427,113,032.64
  4. Step 4: Simplify right side
    1,300,655,670.72x = 833,114,869,981,272,192
  5. Step 5: Solve for x
    x = 833,114,869,981,272,192/1,300,655,670.72
  6. Step 6: Final answer
    x = 640,534,530.96

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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.