Home / 191,721,742.40-287,582,613.60-146,372,110.40

Finding the Fourth Proportional to 191,721,742.40, 287,582,613.60 and 146,372,110.40

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Solution

The fourth proportional to 191,721,742.40, 287,582,613.60 and 146,372,110.40 is: 219,558,165.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,721,742.40 : 287,582,613.60 = 146,372,110.40 : x
  2. Step 2: Convert to fraction form
    191,721,742.40/287,582,613.60 = 146,372,110.40/x
  3. Step 3: Cross multiply
    191,721,742.40x = 287,582,613.60 × 146,372,110.40
  4. Step 4: Simplify right side
    191,721,742.40x = 42,094,074,066,979,744
  5. Step 5: Solve for x
    x = 42,094,074,066,979,744/191,721,742.40
  6. Step 6: Final answer
    x = 219,558,165.60

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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.