Home / 103,390,020.54-142,699,400.28-61,598,567.52

Finding the Fourth Proportional to 103,390,020.54, 142,699,400.28 and 61,598,567.52

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Solution

The fourth proportional to 103,390,020.54, 142,699,400.28 and 61,598,567.52 is: 85,018,637.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,390,020.54 : 142,699,400.28 = 61,598,567.52 : x
  2. Step 2: Convert to fraction form
    103,390,020.54/142,699,400.28 = 61,598,567.52/x
  3. Step 3: Cross multiply
    103,390,020.54x = 142,699,400.28 × 61,598,567.52
  4. Step 4: Simplify right side
    103,390,020.54x = 8,790,078,643,211,087
  5. Step 5: Solve for x
    x = 8,790,078,643,211,087/103,390,020.54
  6. Step 6: Final answer
    x = 85,018,637.17

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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.