Home / 659,341,987.60-989,012,981.40-168,054,307.60

Finding the Fourth Proportional to 659,341,987.60, 989,012,981.40 and 168,054,307.60

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Solution

The fourth proportional to 659,341,987.60, 989,012,981.40 and 168,054,307.60 is: 252,081,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,341,987.60 : 989,012,981.40 = 168,054,307.60 : x
  2. Step 2: Convert to fraction form
    659,341,987.60/989,012,981.40 = 168,054,307.60/x
  3. Step 3: Cross multiply
    659,341,987.60x = 989,012,981.40 × 168,054,307.60
  4. Step 4: Simplify right side
    659,341,987.60x = 166,207,891,796,588,672
  5. Step 5: Solve for x
    x = 166,207,891,796,588,672/659,341,987.60
  6. Step 6: Final answer
    x = 252,081,461.40

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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.