Home / 355,169,151.36-490,106,160-215,920,586.88

Finding the Fourth Proportional to 355,169,151.36, 490,106,160 and 215,920,586.88

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Solution

The fourth proportional to 355,169,151.36, 490,106,160 and 215,920,586.88 is: 297,953,832.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,169,151.36 : 490,106,160 = 215,920,586.88 : x
  2. Step 2: Convert to fraction form
    355,169,151.36/490,106,160 = 215,920,586.88/x
  3. Step 3: Cross multiply
    355,169,151.36x = 490,106,160 × 215,920,586.88
  4. Step 4: Simplify right side
    355,169,151.36x = 105,824,009,700,703,184
  5. Step 5: Solve for x
    x = 105,824,009,700,703,184/355,169,151.36
  6. Step 6: Final answer
    x = 297,953,832.13

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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.