Home / 1,019,343,420.32-1,405,897,005.06-662,226,259.46

Finding the Fourth Proportional to 1,019,343,420.32, 1,405,897,005.06 and 662,226,259.46

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Solution

The fourth proportional to 1,019,343,420.32, 1,405,897,005.06 and 662,226,259.46 is: 913,354,514.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,343,420.32 : 1,405,897,005.06 = 662,226,259.46 : x
  2. Step 2: Convert to fraction form
    1,019,343,420.32/1,405,897,005.06 = 662,226,259.46/x
  3. Step 3: Cross multiply
    1,019,343,420.32x = 1,405,897,005.06 × 662,226,259.46
  4. Step 4: Simplify right side
    1,019,343,420.32x = 931,021,914,839,870,976
  5. Step 5: Solve for x
    x = 931,021,914,839,870,976/1,019,343,420.32
  6. Step 6: Final answer
    x = 913,354,514.57

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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.