Home / 390,208,877.88-585,079,566.08-124,199,679.85

Finding the Fourth Proportional to 390,208,877.88, 585,079,566.08 and 124,199,679.85

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Solution

The fourth proportional to 390,208,877.88, 585,079,566.08 and 124,199,679.85 is: 186,225,119.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,208,877.88 : 585,079,566.08 = 124,199,679.85 : x
  2. Step 2: Convert to fraction form
    390,208,877.88/585,079,566.08 = 124,199,679.85/x
  3. Step 3: Cross multiply
    390,208,877.88x = 585,079,566.08 × 124,199,679.85
  4. Step 4: Simplify right side
    390,208,877.88x = 72,666,694,791,829,232
  5. Step 5: Solve for x
    x = 72,666,694,791,829,232/390,208,877.88
  6. Step 6: Final answer
    x = 186,225,119.19

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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.