Home / 289,657,312.80-434,485,969.20-180,605,619.60

Finding the Fourth Proportional to 289,657,312.80, 434,485,969.20 and 180,605,619.60

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Solution

The fourth proportional to 289,657,312.80, 434,485,969.20 and 180,605,619.60 is: 270,908,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,657,312.80 : 434,485,969.20 = 180,605,619.60 : x
  2. Step 2: Convert to fraction form
    289,657,312.80/434,485,969.20 = 180,605,619.60/x
  3. Step 3: Cross multiply
    289,657,312.80x = 434,485,969.20 × 180,605,619.60
  4. Step 4: Simplify right side
    289,657,312.80x = 78,470,607,674,872,512
  5. Step 5: Solve for x
    x = 78,470,607,674,872,512/289,657,312.80
  6. Step 6: Final answer
    x = 270,908,429.40

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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.