Home / 253,478,345.40-380,217,518.10-162,779,081.40

Finding the Fourth Proportional to 253,478,345.40, 380,217,518.10 and 162,779,081.40

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Solution

The fourth proportional to 253,478,345.40, 380,217,518.10 and 162,779,081.40 is: 244,168,622.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,478,345.40 : 380,217,518.10 = 162,779,081.40 : x
  2. Step 2: Convert to fraction form
    253,478,345.40/380,217,518.10 = 162,779,081.40/x
  3. Step 3: Cross multiply
    253,478,345.40x = 380,217,518.10 × 162,779,081.40
  4. Step 4: Simplify right side
    253,478,345.40x = 61,891,458,328,505,880
  5. Step 5: Solve for x
    x = 61,891,458,328,505,880/253,478,345.40
  6. Step 6: Final answer
    x = 244,168,622.10

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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.