Home / 709,867,678.80-1,064,800,090.16-666,670,002.80

Finding the Fourth Proportional to 709,867,678.80, 1,064,800,090.16 and 666,670,002.80

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Solution

The fourth proportional to 709,867,678.80, 1,064,800,090.16 and 666,670,002.80 is: 1,000,003,663.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,867,678.80 : 1,064,800,090.16 = 666,670,002.80 : x
  2. Step 2: Convert to fraction form
    709,867,678.80/1,064,800,090.16 = 666,670,002.80/x
  3. Step 3: Cross multiply
    709,867,678.80x = 1,064,800,090.16 × 666,670,002.80
  4. Step 4: Simplify right side
    709,867,678.80x = 709,870,279,088,407,424
  5. Step 5: Solve for x
    x = 709,870,279,088,407,424/709,867,678.80
  6. Step 6: Final answer
    x = 1,000,003,663.06

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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.