Home / 771,714,018.86-1,156,985,262.18-397,818,998.55

Finding the Fourth Proportional to 771,714,018.86, 1,156,985,262.18 and 397,818,998.55

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Solution

The fourth proportional to 771,714,018.86, 1,156,985,262.18 and 397,818,998.55 is: 596,426,535.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,714,018.86 : 1,156,985,262.18 = 397,818,998.55 : x
  2. Step 2: Convert to fraction form
    771,714,018.86/1,156,985,262.18 = 397,818,998.55/x
  3. Step 3: Cross multiply
    771,714,018.86x = 1,156,985,262.18 × 397,818,998.55
  4. Step 4: Simplify right side
    771,714,018.86x = 460,270,718,337,556,800
  5. Step 5: Solve for x
    x = 460,270,718,337,556,800/771,714,018.86
  6. Step 6: Final answer
    x = 596,426,535.08

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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.