Home / 761,036,779.71-1,050,212,893.64-447,791,282.55

Finding the Fourth Proportional to 761,036,779.71, 1,050,212,893.64 and 447,791,282.55

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Solution

The fourth proportional to 761,036,779.71, 1,050,212,893.64 and 447,791,282.55 is: 617,941,459.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,036,779.71 : 1,050,212,893.64 = 447,791,282.55 : x
  2. Step 2: Convert to fraction form
    761,036,779.71/1,050,212,893.64 = 447,791,282.55/x
  3. Step 3: Cross multiply
    761,036,779.71x = 1,050,212,893.64 × 447,791,282.55
  4. Step 4: Simplify right side
    761,036,779.71x = 470,276,178,591,363,392
  5. Step 5: Solve for x
    x = 470,276,178,591,363,392/761,036,779.71
  6. Step 6: Final answer
    x = 617,941,459.77

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Double scale
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1.5x scale

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.