Home / 630,088,709.40-945,133,064.10-545,154,053.40

Finding the Fourth Proportional to 630,088,709.40, 945,133,064.10 and 545,154,053.40

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Solution

The fourth proportional to 630,088,709.40, 945,133,064.10 and 545,154,053.40 is: 817,731,080.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,088,709.40 : 945,133,064.10 = 545,154,053.40 : x
  2. Step 2: Convert to fraction form
    630,088,709.40/945,133,064.10 = 545,154,053.40/x
  3. Step 3: Cross multiply
    630,088,709.40x = 945,133,064.10 × 545,154,053.40
  4. Step 4: Simplify right side
    630,088,709.40x = 515,243,120,896,476,992
  5. Step 5: Solve for x
    x = 515,243,120,896,476,992/630,088,709.40
  6. Step 6: Final answer
    x = 817,731,080.10

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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.