Home / 442,829,017.06-663,986,541.79-209,657,771.58

Finding the Fourth Proportional to 442,829,017.06, 663,986,541.79 and 209,657,771.58

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Solution

The fourth proportional to 442,829,017.06, 663,986,541.79 and 209,657,771.58 is: 314,364,988.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,829,017.06 : 663,986,541.79 = 209,657,771.58 : x
  2. Step 2: Convert to fraction form
    442,829,017.06/663,986,541.79 = 209,657,771.58/x
  3. Step 3: Cross multiply
    442,829,017.06x = 663,986,541.79 × 209,657,771.58
  4. Step 4: Simplify right side
    442,829,017.06x = 139,209,938,710,801,952
  5. Step 5: Solve for x
    x = 139,209,938,710,801,952/442,829,017.06
  6. Step 6: Final answer
    x = 314,364,988.17

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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.