Home / 1,174,649,174.76-1,620,983,513.24-646,013,353.10

Finding the Fourth Proportional to 1,174,649,174.76, 1,620,983,513.24 and 646,013,353.10

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Solution

The fourth proportional to 1,174,649,174.76, 1,620,983,513.24 and 646,013,353.10 is: 891,480,637.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174,649,174.76 : 1,620,983,513.24 = 646,013,353.10 : x
  2. Step 2: Convert to fraction form
    1,174,649,174.76/1,620,983,513.24 = 646,013,353.10/x
  3. Step 3: Cross multiply
    1,174,649,174.76x = 1,620,983,513.24 × 646,013,353.10
  4. Step 4: Simplify right side
    1,174,649,174.76x = 1,047,176,994,699,045,888
  5. Step 5: Solve for x
    x = 1,047,176,994,699,045,888/1,174,649,174.76
  6. Step 6: Final answer
    x = 891,480,637.11

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Double scale
Find fourth proportional to 1,174,649,175.76, 1,620,983,514.62 and 646,013,354.10
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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.