Home / 103,196,484.72-142,409,347.11-56,151,971.10

Finding the Fourth Proportional to 103,196,484.72, 142,409,347.11 and 56,151,971.10

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Solution

The fourth proportional to 103,196,484.72, 142,409,347.11 and 56,151,971.10 is: 77,488,739.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,196,484.72 : 142,409,347.11 = 56,151,971.10 : x
  2. Step 2: Convert to fraction form
    103,196,484.72/142,409,347.11 = 56,151,971.10/x
  3. Step 3: Cross multiply
    103,196,484.72x = 142,409,347.11 × 56,151,971.10
  4. Step 4: Simplify right side
    103,196,484.72x = 7,996,565,543,290,590
  5. Step 5: Solve for x
    x = 7,996,565,543,290,590/103,196,484.72
  6. Step 6: Final answer
    x = 77,488,739.71

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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.