Home / 391,140,587,870.40-586,710,881,805.60-202,854,230,216.40

Finding the Fourth Proportional to 391,140,587,870.40, 586,710,881,805.60 and 202,854,230,216.40

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Solution

The fourth proportional to 391,140,587,870.40, 586,710,881,805.60 and 202,854,230,216.40 is: 304,281,345,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,140,587,870.40 : 586,710,881,805.60 = 202,854,230,216.40 : x
  2. Step 2: Convert to fraction form
    391,140,587,870.40/586,710,881,805.60 = 202,854,230,216.40/x
  3. Step 3: Cross multiply
    391,140,587,870.40x = 586,710,881,805.60 × 202,854,230,216.40
  4. Step 4: Simplify right side
    391,140,587,870.40x = 119,016,784,288,260,227,596,288
  5. Step 5: Solve for x
    x = 119,016,784,288,260,227,596,288/391,140,587,870.40
  6. Step 6: Final answer
    x = 304,281,345,324.60

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1.5x scale

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.