Home / 390,119,068.60-585,177,436.44-98,985,628.60

Finding the Fourth Proportional to 390,119,068.60, 585,177,436.44 and 98,985,628.60

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Solution

The fourth proportional to 390,119,068.60, 585,177,436.44 and 98,985,628.60 is: 148,478,146.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,119,068.60 : 585,177,436.44 = 98,985,628.60 : x
  2. Step 2: Convert to fraction form
    390,119,068.60/585,177,436.44 = 98,985,628.60/x
  3. Step 3: Cross multiply
    390,119,068.60x = 585,177,436.44 × 98,985,628.60
  4. Step 4: Simplify right side
    390,119,068.60x = 57,924,156,388,549,952
  5. Step 5: Solve for x
    x = 57,924,156,388,549,952/390,119,068.60
  6. Step 6: Final answer
    x = 148,478,146.93

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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.