Home / 375,775,355,981.16-518,587,067,360.78-221,457,548,338.10

Finding the Fourth Proportional to 375,775,355,981.16, 518,587,067,360.78 and 221,457,548,338.10

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Solution

The fourth proportional to 375,775,355,981.16, 518,587,067,360.78 and 221,457,548,338.10 is: 305,621,480,253.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,775,355,981.16 : 518,587,067,360.78 = 221,457,548,338.10 : x
  2. Step 2: Convert to fraction form
    375,775,355,981.16/518,587,067,360.78 = 221,457,548,338.10/x
  3. Step 3: Cross multiply
    375,775,355,981.16x = 518,587,067,360.78 × 221,457,548,338.10
  4. Step 4: Simplify right side
    375,775,355,981.16x = 114,845,020,537,563,461,451,776
  5. Step 5: Solve for x
    x = 114,845,020,537,563,461,451,776/375,775,355,981.16
  6. Step 6: Final answer
    x = 305,621,480,253.01

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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.