Home / 87,210,516.95-120,312,700.08-51,908,526.10

Finding the Fourth Proportional to 87,210,516.95, 120,312,700.08 and 51,908,526.10

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Solution

The fourth proportional to 87,210,516.95, 120,312,700.08 and 51,908,526.10 is: 71,611,259.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,210,516.95 : 120,312,700.08 = 51,908,526.10 : x
  2. Step 2: Convert to fraction form
    87,210,516.95/120,312,700.08 = 51,908,526.10/x
  3. Step 3: Cross multiply
    87,210,516.95x = 120,312,700.08 × 51,908,526.10
  4. Step 4: Simplify right side
    87,210,516.95x = 6,245,254,932,219,886
  5. Step 5: Solve for x
    x = 6,245,254,932,219,886/87,210,516.95
  6. Step 6: Final answer
    x = 71,611,259.18

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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.