Home / 158,030,909,427.96-218,082,816,411.44-85,772,989,172.34

Finding the Fourth Proportional to 158,030,909,427.96, 218,082,816,411.44 and 85,772,989,172.34

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Solution

The fourth proportional to 158,030,909,427.96, 218,082,816,411.44 and 85,772,989,172.34 is: 118,366,812,659.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,030,909,427.96 : 218,082,816,411.44 = 85,772,989,172.34 : x
  2. Step 2: Convert to fraction form
    158,030,909,427.96/218,082,816,411.44 = 85,772,989,172.34/x
  3. Step 3: Cross multiply
    158,030,909,427.96x = 218,082,816,411.44 × 85,772,989,172.34
  4. Step 4: Simplify right side
    158,030,909,427.96x = 18,705,615,050,731,853,709,312
  5. Step 5: Solve for x
    x = 18,705,615,050,731,853,709,312/158,030,909,427.96
  6. Step 6: Final answer
    x = 118,366,812,659.89

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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.