Home / 425,736,175.80-638,604,263.70-102,620,047.80

Finding the Fourth Proportional to 425,736,175.80, 638,604,263.70 and 102,620,047.80

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Solution

The fourth proportional to 425,736,175.80, 638,604,263.70 and 102,620,047.80 is: 153,930,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,736,175.80 : 638,604,263.70 = 102,620,047.80 : x
  2. Step 2: Convert to fraction form
    425,736,175.80/638,604,263.70 = 102,620,047.80/x
  3. Step 3: Cross multiply
    425,736,175.80x = 638,604,263.70 × 102,620,047.80
  4. Step 4: Simplify right side
    425,736,175.80x = 65,533,600,066,177,808
  5. Step 5: Solve for x
    x = 65,533,600,066,177,808/425,736,175.80
  6. Step 6: Final answer
    x = 153,930,071.70

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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.