Home / 479,784,574.95-662,147,094.65-291,569,430.39

Finding the Fourth Proportional to 479,784,574.95, 662,147,094.65 and 291,569,430.39

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Solution

The fourth proportional to 479,784,574.95, 662,147,094.65 and 291,569,430.39 is: 402,392,784.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,784,574.95 : 662,147,094.65 = 291,569,430.39 : x
  2. Step 2: Convert to fraction form
    479,784,574.95/662,147,094.65 = 291,569,430.39/x
  3. Step 3: Cross multiply
    479,784,574.95x = 662,147,094.65 × 291,569,430.39
  4. Step 4: Simplify right side
    479,784,574.95x = 193,061,851,221,493,888
  5. Step 5: Solve for x
    x = 193,061,851,221,493,888/479,784,574.95
  6. Step 6: Final answer
    x = 402,392,784.81

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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.