Home / 663,798,739.86-916,018,248.18-366,434,595.18

Finding the Fourth Proportional to 663,798,739.86, 916,018,248.18 and 366,434,595.18

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Solution

The fourth proportional to 663,798,739.86, 916,018,248.18 and 366,434,595.18 is: 505,666,485.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,798,739.86 : 916,018,248.18 = 366,434,595.18 : x
  2. Step 2: Convert to fraction form
    663,798,739.86/916,018,248.18 = 366,434,595.18/x
  3. Step 3: Cross multiply
    663,798,739.86x = 916,018,248.18 × 366,434,595.18
  4. Step 4: Simplify right side
    663,798,739.86x = 335,660,775,949,331,072
  5. Step 5: Solve for x
    x = 335,660,775,949,331,072/663,798,739.86
  6. Step 6: Final answer
    x = 505,666,485.63

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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.