Home / 315,390,129.60-472,425,300.36-253,645,533.84

Finding the Fourth Proportional to 315,390,129.60, 472,425,300.36 and 253,645,533.84

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Solution

The fourth proportional to 315,390,129.60, 472,425,300.36 and 253,645,533.84 is: 379,937,595.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,390,129.60 : 472,425,300.36 = 253,645,533.84 : x
  2. Step 2: Convert to fraction form
    315,390,129.60/472,425,300.36 = 253,645,533.84/x
  3. Step 3: Cross multiply
    315,390,129.60x = 472,425,300.36 × 253,645,533.84
  4. Step 4: Simplify right side
    315,390,129.60x = 119,828,567,509,334,544
  5. Step 5: Solve for x
    x = 119,828,567,509,334,544/315,390,129.60
  6. Step 6: Final answer
    x = 379,937,595.58

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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.