Home / 103,314,634.72-142,574,190.86-56,904,890.92

Finding the Fourth Proportional to 103,314,634.72, 142,574,190.86 and 56,904,890.92

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Solution

The fourth proportional to 103,314,634.72, 142,574,190.86 and 56,904,890.92 is: 78,528,746.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,314,634.72 : 142,574,190.86 = 56,904,890.92 : x
  2. Step 2: Convert to fraction form
    103,314,634.72/142,574,190.86 = 56,904,890.92/x
  3. Step 3: Cross multiply
    103,314,634.72x = 142,574,190.86 × 56,904,890.92
  4. Step 4: Simplify right side
    103,314,634.72x = 8,113,168,778,681,388
  5. Step 5: Solve for x
    x = 8,113,168,778,681,388/103,314,634.72
  6. Step 6: Final answer
    x = 78,528,746.69

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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.