Home / 661,569,271.80-992,353,907.70-558,257,141.40

Finding the Fourth Proportional to 661,569,271.80, 992,353,907.70 and 558,257,141.40

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Solution

The fourth proportional to 661,569,271.80, 992,353,907.70 and 558,257,141.40 is: 837,385,712.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,569,271.80 : 992,353,907.70 = 558,257,141.40 : x
  2. Step 2: Convert to fraction form
    661,569,271.80/992,353,907.70 = 558,257,141.40/x
  3. Step 3: Cross multiply
    661,569,271.80x = 992,353,907.70 × 558,257,141.40
  4. Step 4: Simplify right side
    661,569,271.80x = 553,988,655,769,721,472
  5. Step 5: Solve for x
    x = 553,988,655,769,721,472/661,569,271.80
  6. Step 6: Final answer
    x = 837,385,712.10

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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.