Home / 105,153,700.16-157,589,559.18-81,838,595.77

Finding the Fourth Proportional to 105,153,700.16, 157,589,559.18 and 81,838,595.77

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Solution

The fourth proportional to 105,153,700.16, 157,589,559.18 and 81,838,595.77 is: 122,648,163.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,153,700.16 : 157,589,559.18 = 81,838,595.77 : x
  2. Step 2: Convert to fraction form
    105,153,700.16/157,589,559.18 = 81,838,595.77/x
  3. Step 3: Cross multiply
    105,153,700.16x = 157,589,559.18 × 81,838,595.77
  4. Step 4: Simplify right side
    105,153,700.16x = 12,896,908,230,910,540
  5. Step 5: Solve for x
    x = 12,896,908,230,910,540/105,153,700.16
  6. Step 6: Final answer
    x = 122,648,163.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.