Home / 811,961,179.60-1,120,507,509.04-440,683,210.96

Finding the Fourth Proportional to 811,961,179.60, 1,120,507,509.04 and 440,683,210.96

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Solution

The fourth proportional to 811,961,179.60, 1,120,507,509.04 and 440,683,210.96 is: 608,143,417.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,961,179.60 : 1,120,507,509.04 = 440,683,210.96 : x
  2. Step 2: Convert to fraction form
    811,961,179.60/1,120,507,509.04 = 440,683,210.96/x
  3. Step 3: Cross multiply
    811,961,179.60x = 1,120,507,509.04 × 440,683,210.96
  4. Step 4: Simplify right side
    811,961,179.60x = 493,788,846,988,538,368
  5. Step 5: Solve for x
    x = 493,788,846,988,538,368/811,961,179.60
  6. Step 6: Final answer
    x = 608,143,417.93

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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.