Home / 130,896,919.41-180,638,295.72-72,158,295.72

Finding the Fourth Proportional to 130,896,919.41, 180,638,295.72 and 72,158,295.72

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Solution

The fourth proportional to 130,896,919.41, 180,638,295.72 and 72,158,295.72 is: 99,578,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,896,919.41 : 180,638,295.72 = 72,158,295.72 : x
  2. Step 2: Convert to fraction form
    130,896,919.41/180,638,295.72 = 72,158,295.72/x
  3. Step 3: Cross multiply
    130,896,919.41x = 180,638,295.72 × 72,158,295.72
  4. Step 4: Simplify right side
    130,896,919.41x = 13,034,551,560,920,570
  5. Step 5: Solve for x
    x = 13,034,551,560,920,570/130,896,919.41
  6. Step 6: Final answer
    x = 99,578,749.60

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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.