Home / 21,038,991,588.23-31,608,833,380.28-13,490,565,349.64

Finding the Fourth Proportional to 21,038,991,588.23, 31,608,833,380.28 and 13,490,565,349.64

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Solution

The fourth proportional to 21,038,991,588.23, 31,608,833,380.28 and 13,490,565,349.64 is: 20,268,130,749.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038,991,588.23 : 31,608,833,380.28 = 13,490,565,349.64 : x
  2. Step 2: Convert to fraction form
    21,038,991,588.23/31,608,833,380.28 = 13,490,565,349.64/x
  3. Step 3: Cross multiply
    21,038,991,588.23x = 31,608,833,380.28 × 13,490,565,349.64
  4. Step 4: Simplify right side
    21,038,991,588.23x = 426,421,032,342,549,495,808
  5. Step 5: Solve for x
    x = 426,421,032,342,549,495,808/21,038,991,588.23
  6. Step 6: Final answer
    x = 20,268,130,749.25

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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.