Home / 916,265,475.72-1,264,435,725.06-498,570,565.32

Finding the Fourth Proportional to 916,265,475.72, 1,264,435,725.06 and 498,570,565.32

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Solution

The fourth proportional to 916,265,475.72, 1,264,435,725.06 and 498,570,565.32 is: 688,021,595.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,265,475.72 : 1,264,435,725.06 = 498,570,565.32 : x
  2. Step 2: Convert to fraction form
    916,265,475.72/1,264,435,725.06 = 498,570,565.32/x
  3. Step 3: Cross multiply
    916,265,475.72x = 1,264,435,725.06 × 498,570,565.32
  4. Step 4: Simplify right side
    916,265,475.72x = 630,410,434,253,968,256
  5. Step 5: Solve for x
    x = 630,410,434,253,968,256/916,265,475.72
  6. Step 6: Final answer
    x = 688,021,595.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.