Home / 980,235,780.30-1,470,353,670.45-358,449,810.30

Finding the Fourth Proportional to 980,235,780.30, 1,470,353,670.45 and 358,449,810.30

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Solution

The fourth proportional to 980,235,780.30, 1,470,353,670.45 and 358,449,810.30 is: 537,674,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,235,780.30 : 1,470,353,670.45 = 358,449,810.30 : x
  2. Step 2: Convert to fraction form
    980,235,780.30/1,470,353,670.45 = 358,449,810.30/x
  3. Step 3: Cross multiply
    980,235,780.30x = 1,470,353,670.45 × 358,449,810.30
  4. Step 4: Simplify right side
    980,235,780.30x = 527,047,994,246,711,232
  5. Step 5: Solve for x
    x = 527,047,994,246,711,232/980,235,780.30
  6. Step 6: Final answer
    x = 537,674,715.45

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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.