Home / 558,155,312.72-770,254,341.96-310,695,125.84

Finding the Fourth Proportional to 558,155,312.72, 770,254,341.96 and 310,695,125.84

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Solution

The fourth proportional to 558,155,312.72, 770,254,341.96 and 310,695,125.84 is: 428,759,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,155,312.72 : 770,254,341.96 = 310,695,125.84 : x
  2. Step 2: Convert to fraction form
    558,155,312.72/770,254,341.96 = 310,695,125.84/x
  3. Step 3: Cross multiply
    558,155,312.72x = 770,254,341.96 × 310,695,125.84
  4. Step 4: Simplify right side
    558,155,312.72x = 239,314,269,704,068,576
  5. Step 5: Solve for x
    x = 239,314,269,704,068,576/558,155,312.72
  6. Step 6: Final answer
    x = 428,759,279.45

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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.