Home / 931,843,020,931.90-1,396,528,886,195.60-478,543,612,813.12

Finding the Fourth Proportional to 931,843,020,931.90, 1,396,528,886,195.60 and 478,543,612,813.12

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Solution

The fourth proportional to 931,843,020,931.90, 1,396,528,886,195.60 and 478,543,612,813.12 is: 717,180,859,421.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,843,020,931.90 : 1,396,528,886,195.60 = 478,543,612,813.12 : x
  2. Step 2: Convert to fraction form
    931,843,020,931.90/1,396,528,886,195.60 = 478,543,612,813.12/x
  3. Step 3: Cross multiply
    931,843,020,931.90x = 1,396,528,886,195.60 × 478,543,612,813.12
  4. Step 4: Simplify right side
    931,843,020,931.90x = 668,299,978,597,924,918,525,952
  5. Step 5: Solve for x
    x = 668,299,978,597,924,918,525,952/931,843,020,931.90
  6. Step 6: Final answer
    x = 717,180,859,421.56

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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.