Home / 18,931,968,000.40-28,397,952,000.60-10,224,838,656.40

Finding the Fourth Proportional to 18,931,968,000.40, 28,397,952,000.60 and 10,224,838,656.40

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Solution

The fourth proportional to 18,931,968,000.40, 28,397,952,000.60 and 10,224,838,656.40 is: 15,337,257,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,931,968,000.40 : 28,397,952,000.60 = 10,224,838,656.40 : x
  2. Step 2: Convert to fraction form
    18,931,968,000.40/28,397,952,000.60 = 10,224,838,656.40/x
  3. Step 3: Cross multiply
    18,931,968,000.40x = 28,397,952,000.60 × 10,224,838,656.40
  4. Step 4: Simplify right side
    18,931,968,000.40x = 290,364,477,378,326,560,768
  5. Step 5: Solve for x
    x = 290,364,477,378,326,560,768/18,931,968,000.40
  6. Step 6: Final answer
    x = 15,337,257,984.60

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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.