Home / 158,030,909,341.20-218,082,816,291.50-85,772,989,085.32

Finding the Fourth Proportional to 158,030,909,341.20, 218,082,816,291.50 and 85,772,989,085.32

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Solution

The fourth proportional to 158,030,909,341.20, 218,082,816,291.50 and 85,772,989,085.32 is: 118,366,812,539.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,030,909,341.20 : 218,082,816,291.50 = 85,772,989,085.32 : x
  2. Step 2: Convert to fraction form
    158,030,909,341.20/218,082,816,291.50 = 85,772,989,085.32/x
  3. Step 3: Cross multiply
    158,030,909,341.20x = 218,082,816,291.50 × 85,772,989,085.32
  4. Step 4: Simplify right side
    158,030,909,341.20x = 18,705,615,021,466,678,460,416
  5. Step 5: Solve for x
    x = 18,705,615,021,466,678,460,416/158,030,909,341.20
  6. Step 6: Final answer
    x = 118,366,812,539.69

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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.