Home / 918,372,630.72-1,266,574,532.04-776,015,814.36

Finding the Fourth Proportional to 918,372,630.72, 1,266,574,532.04 and 776,015,814.36

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Solution

The fourth proportional to 918,372,630.72, 1,266,574,532.04 and 776,015,814.36 is: 1,070,242,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,372,630.72 : 1,266,574,532.04 = 776,015,814.36 : x
  2. Step 2: Convert to fraction form
    918,372,630.72/1,266,574,532.04 = 776,015,814.36/x
  3. Step 3: Cross multiply
    918,372,630.72x = 1,266,574,532.04 × 776,015,814.36
  4. Step 4: Simplify right side
    918,372,630.72x = 982,881,866,928,656,512
  5. Step 5: Solve for x
    x = 982,881,866,928,656,512/918,372,630.72
  6. Step 6: Final answer
    x = 1,070,242,986.40

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Double scale
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1.5x scale

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.