Home / 158,030,909,340.19-218,082,816,290.11-85,772,989,084.32

Finding the Fourth Proportional to 158,030,909,340.19, 218,082,816,290.11 and 85,772,989,084.32

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Solution

The fourth proportional to 158,030,909,340.19, 218,082,816,290.11 and 85,772,989,084.32 is: 118,366,812,538.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,030,909,340.19 : 218,082,816,290.11 = 85,772,989,084.32 : x
  2. Step 2: Convert to fraction form
    158,030,909,340.19/218,082,816,290.11 = 85,772,989,084.32/x
  3. Step 3: Cross multiply
    158,030,909,340.19x = 218,082,816,290.11 × 85,772,989,084.32
  4. Step 4: Simplify right side
    158,030,909,340.19x = 18,705,615,021,129,368,338,432
  5. Step 5: Solve for x
    x = 18,705,615,021,129,368,338,432/158,030,909,340.19
  6. Step 6: Final answer
    x = 118,366,812,538.31

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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.