Home / 121,168,551,021.40-181,752,826,532.10-81,496,692,947.80

Finding the Fourth Proportional to 121,168,551,021.40, 181,752,826,532.10 and 81,496,692,947.80

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Solution

The fourth proportional to 121,168,551,021.40, 181,752,826,532.10 and 81,496,692,947.80 is: 122,245,039,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,168,551,021.40 : 181,752,826,532.10 = 81,496,692,947.80 : x
  2. Step 2: Convert to fraction form
    121,168,551,021.40/181,752,826,532.10 = 81,496,692,947.80/x
  3. Step 3: Cross multiply
    121,168,551,021.40x = 181,752,826,532.10 × 81,496,692,947.80
  4. Step 4: Simplify right side
    121,168,551,021.40x = 14,812,254,296,281,312,133,120
  5. Step 5: Solve for x
    x = 14,812,254,296,281,312,133,120/121,168,551,021.40
  6. Step 6: Final answer
    x = 122,245,039,421.70

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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.