Home / 1,291,238,240,631.90-1,781,898,182,438.70-705,288,459,957.10

Finding the Fourth Proportional to 1,291,238,240,631.90, 1,781,898,182,438.70 and 705,288,459,957.10

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Solution

The fourth proportional to 1,291,238,240,631.90, 1,781,898,182,438.70 and 705,288,459,957.10 is: 973,292,290,567.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,238,240,631.90 : 1,781,898,182,438.70 = 705,288,459,957.10 : x
  2. Step 2: Convert to fraction form
    1,291,238,240,631.90/1,781,898,182,438.70 = 705,288,459,957.10/x
  3. Step 3: Cross multiply
    1,291,238,240,631.90x = 1,781,898,182,438.70 × 705,288,459,957.10
  4. Step 4: Simplify right side
    1,291,238,240,631.90x = 1,256,752,224,892,546,206,138,368
  5. Step 5: Solve for x
    x = 1,256,752,224,892,546,206,138,368/1,291,238,240,631.90
  6. Step 6: Final answer
    x = 973,292,290,567.17

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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.