Home / 788,531,779.00-1,088,508,913.23-491,320,864.50

Finding the Fourth Proportional to 788,531,779.00, 1,088,508,913.23 and 491,320,864.50

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Solution

The fourth proportional to 788,531,779.00, 1,088,508,913.23 and 491,320,864.50 is: 678,231,562.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,531,779.00 : 1,088,508,913.23 = 491,320,864.50 : x
  2. Step 2: Convert to fraction form
    788,531,779.00/1,088,508,913.23 = 491,320,864.50/x
  3. Step 3: Cross multiply
    788,531,779.00x = 1,088,508,913.23 × 491,320,864.50
  4. Step 4: Simplify right side
    788,531,779.00x = 534,807,140,261,855,040
  5. Step 5: Solve for x
    x = 534,807,140,261,855,040/788,531,779.00
  6. Step 6: Final answer
    x = 678,231,562.13

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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.