Home / 158,030,909,425.34-218,082,816,407.81-85,772,989,169.71

Finding the Fourth Proportional to 158,030,909,425.34, 218,082,816,407.81 and 85,772,989,169.71

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Solution

The fourth proportional to 158,030,909,425.34, 218,082,816,407.81 and 85,772,989,169.71 is: 118,366,812,656.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,030,909,425.34 : 218,082,816,407.81 = 85,772,989,169.71 : x
  2. Step 2: Convert to fraction form
    158,030,909,425.34/218,082,816,407.81 = 85,772,989,169.71/x
  3. Step 3: Cross multiply
    158,030,909,425.34x = 218,082,816,407.81 × 85,772,989,169.71
  4. Step 4: Simplify right side
    158,030,909,425.34x = 18,705,615,049,845,851,029,504
  5. Step 5: Solve for x
    x = 18,705,615,049,845,851,029,504/158,030,909,425.34
  6. Step 6: Final answer
    x = 118,366,812,656.25

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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.