Home / 842,184,001.40-1,263,276,002.10-638,110,657.40

Finding the Fourth Proportional to 842,184,001.40, 1,263,276,002.10 and 638,110,657.40

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Solution

The fourth proportional to 842,184,001.40, 1,263,276,002.10 and 638,110,657.40 is: 957,165,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,184,001.40 : 1,263,276,002.10 = 638,110,657.40 : x
  2. Step 2: Convert to fraction form
    842,184,001.40/1,263,276,002.10 = 638,110,657.40/x
  3. Step 3: Cross multiply
    842,184,001.40x = 1,263,276,002.10 × 638,110,657.40
  4. Step 4: Simplify right side
    842,184,001.40x = 806,109,880,177,674,752
  5. Step 5: Solve for x
    x = 806,109,880,177,674,752/842,184,001.40
  6. Step 6: Final answer
    x = 957,165,986.10

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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.