Home / 137,079,038,820.98-205,510,417,861.16-86,608,090,644.96

Finding the Fourth Proportional to 137,079,038,820.98, 205,510,417,861.16 and 86,608,090,644.96

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Solution

The fourth proportional to 137,079,038,820.98, 205,510,417,861.16 and 86,608,090,644.96 is: 129,843,811,655.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,079,038,820.98 : 205,510,417,861.16 = 86,608,090,644.96 : x
  2. Step 2: Convert to fraction form
    137,079,038,820.98/205,510,417,861.16 = 86,608,090,644.96/x
  3. Step 3: Cross multiply
    137,079,038,820.98x = 205,510,417,861.16 × 86,608,090,644.96
  4. Step 4: Simplify right side
    137,079,038,820.98x = 17,798,864,898,602,953,605,120
  5. Step 5: Solve for x
    x = 17,798,864,898,602,953,605,120/137,079,038,820.98
  6. Step 6: Final answer
    x = 129,843,811,655.61

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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.