Home / 612,975,056.10-919,728,004.95-289,692,521.70

Finding the Fourth Proportional to 612,975,056.10, 919,728,004.95 and 289,692,521.70

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Solution

The fourth proportional to 612,975,056.10, 919,728,004.95 and 289,692,521.70 is: 434,664,220.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,975,056.10 : 919,728,004.95 = 289,692,521.70 : x
  2. Step 2: Convert to fraction form
    612,975,056.10/919,728,004.95 = 289,692,521.70/x
  3. Step 3: Cross multiply
    612,975,056.10x = 919,728,004.95 × 289,692,521.70
  4. Step 4: Simplify right side
    612,975,056.10x = 266,438,325,032,075,584
  5. Step 5: Solve for x
    x = 266,438,325,032,075,584/612,975,056.10
  6. Step 6: Final answer
    x = 434,664,220.64

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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.