Home / 390,932,431,858.86-586,382,687,236.90-136,020,160,041.88

Finding the Fourth Proportional to 390,932,431,858.86, 586,382,687,236.90 and 136,020,160,041.88

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Solution

The fourth proportional to 390,932,431,858.86, 586,382,687,236.90 and 136,020,160,041.88 is: 204,024,686,784.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,932,431,858.86 : 586,382,687,236.90 = 136,020,160,041.88 : x
  2. Step 2: Convert to fraction form
    390,932,431,858.86/586,382,687,236.90 = 136,020,160,041.88/x
  3. Step 3: Cross multiply
    390,932,431,858.86x = 586,382,687,236.90 × 136,020,160,041.88
  4. Step 4: Simplify right side
    390,932,431,858.86x = 79,759,866,963,750,809,501,696
  5. Step 5: Solve for x
    x = 79,759,866,963,750,809,501,696/390,932,431,858.86
  6. Step 6: Final answer
    x = 204,024,686,784.10

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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.