Home / 520,854,413.93-718,779,878.66-282,699,683.88

Finding the Fourth Proportional to 520,854,413.93, 718,779,878.66 and 282,699,683.88

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Solution

The fourth proportional to 520,854,413.93, 718,779,878.66 and 282,699,683.88 is: 390,125,991.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,854,413.93 : 718,779,878.66 = 282,699,683.88 : x
  2. Step 2: Convert to fraction form
    520,854,413.93/718,779,878.66 = 282,699,683.88/x
  3. Step 3: Cross multiply
    520,854,413.93x = 718,779,878.66 × 282,699,683.88
  4. Step 4: Simplify right side
    520,854,413.93x = 203,198,844,476,525,024
  5. Step 5: Solve for x
    x = 203,198,844,476,525,024/520,854,413.93
  6. Step 6: Final answer
    x = 390,125,991.14

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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.