Home / 514,312,257.42-709,809,794.28-288,312,281.40

Finding the Fourth Proportional to 514,312,257.42, 709,809,794.28 and 288,312,281.40

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Solution

The fourth proportional to 514,312,257.42, 709,809,794.28 and 288,312,281.40 is: 397,903,954.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,312,257.42 : 709,809,794.28 = 288,312,281.40 : x
  2. Step 2: Convert to fraction form
    514,312,257.42/709,809,794.28 = 288,312,281.40/x
  3. Step 3: Cross multiply
    514,312,257.42x = 709,809,794.28 × 288,312,281.40
  4. Step 4: Simplify right side
    514,312,257.42x = 204,646,881,148,931,456
  5. Step 5: Solve for x
    x = 204,646,881,148,931,456/514,312,257.42
  6. Step 6: Final answer
    x = 397,903,954.64

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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.