Home / 505,779,421.08-697,990,935.60-282,770,498.92

Finding the Fourth Proportional to 505,779,421.08, 697,990,935.60 and 282,770,498.92

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Solution

The fourth proportional to 505,779,421.08, 697,990,935.60 and 282,770,498.92 is: 390,231,861.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,779,421.08 : 697,990,935.60 = 282,770,498.92 : x
  2. Step 2: Convert to fraction form
    505,779,421.08/697,990,935.60 = 282,770,498.92/x
  3. Step 3: Cross multiply
    505,779,421.08x = 697,990,935.60 × 282,770,498.92
  4. Step 4: Simplify right side
    505,779,421.08x = 197,371,245,101,249,600
  5. Step 5: Solve for x
    x = 197,371,245,101,249,600/505,779,421.08
  6. Step 6: Final answer
    x = 390,231,861.71

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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.