Home / 1,563,708,255.46-2,157,959,532.88-920,009,121.98

Finding the Fourth Proportional to 1,563,708,255.46, 2,157,959,532.88 and 920,009,121.98

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Solution

The fourth proportional to 1,563,708,255.46, 2,157,959,532.88 and 920,009,121.98 is: 1,269,637,381.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563,708,255.46 : 2,157,959,532.88 = 920,009,121.98 : x
  2. Step 2: Convert to fraction form
    1,563,708,255.46/2,157,959,532.88 = 920,009,121.98/x
  3. Step 3: Cross multiply
    1,563,708,255.46x = 2,157,959,532.88 × 920,009,121.98
  4. Step 4: Simplify right side
    1,563,708,255.46x = 1,985,342,455,103,613,952
  5. Step 5: Solve for x
    x = 1,985,342,455,103,613,952/1,563,708,255.46
  6. Step 6: Final answer
    x = 1,269,637,381.64

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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.