Home / 289,702,420-400,842,095.46-252,610,047.16

Finding the Fourth Proportional to 289,702,420, 400,842,095.46 and 252,610,047.16

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Solution

The fourth proportional to 289,702,420, 400,842,095.46 and 252,610,047.16 is: 349,519,830.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,702,420 : 400,842,095.46 = 252,610,047.16 : x
  2. Step 2: Convert to fraction form
    289,702,420/400,842,095.46 = 252,610,047.16/x
  3. Step 3: Cross multiply
    289,702,420x = 400,842,095.46 × 252,610,047.16
  4. Step 4: Simplify right side
    289,702,420x = 101,256,740,637,863,808
  5. Step 5: Solve for x
    x = 101,256,740,637,863,808/289,702,420
  6. Step 6: Final answer
    x = 349,519,830.17

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1.5x scale

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.