Home / 646,827,281.60-970,240,922.40-186,780,459.20

Finding the Fourth Proportional to 646,827,281.60, 970,240,922.40 and 186,780,459.20

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Solution

The fourth proportional to 646,827,281.60, 970,240,922.40 and 186,780,459.20 is: 280,170,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,827,281.60 : 970,240,922.40 = 186,780,459.20 : x
  2. Step 2: Convert to fraction form
    646,827,281.60/970,240,922.40 = 186,780,459.20/x
  3. Step 3: Cross multiply
    646,827,281.60x = 970,240,922.40 × 186,780,459.20
  4. Step 4: Simplify right side
    646,827,281.60x = 181,222,045,020,503,552
  5. Step 5: Solve for x
    x = 181,222,045,020,503,552/646,827,281.60
  6. Step 6: Final answer
    x = 280,170,688.80

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1.5x scale

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.