Home / 145,538,282.90-200,841,790.57-79,458,779.12

Finding the Fourth Proportional to 145,538,282.90, 200,841,790.57 and 79,458,779.12

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Solution

The fourth proportional to 145,538,282.90, 200,841,790.57 and 79,458,779.12 is: 109,652,547.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,538,282.90 : 200,841,790.57 = 79,458,779.12 : x
  2. Step 2: Convert to fraction form
    145,538,282.90/200,841,790.57 = 79,458,779.12/x
  3. Step 3: Cross multiply
    145,538,282.90x = 200,841,790.57 × 79,458,779.12
  4. Step 4: Simplify right side
    145,538,282.90x = 15,958,643,474,966,930
  5. Step 5: Solve for x
    x = 15,958,643,474,966,930/145,538,282.90
  6. Step 6: Final answer
    x = 109,652,547.47

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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.