Home / 20,855,251,918.20-31,282,877,877.30-18,569,630,465.40

Finding the Fourth Proportional to 20,855,251,918.20, 31,282,877,877.30 and 18,569,630,465.40

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Solution

The fourth proportional to 20,855,251,918.20, 31,282,877,877.30 and 18,569,630,465.40 is: 27,854,445,698.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,855,251,918.20 : 31,282,877,877.30 = 18,569,630,465.40 : x
  2. Step 2: Convert to fraction form
    20,855,251,918.20/31,282,877,877.30 = 18,569,630,465.40/x
  3. Step 3: Cross multiply
    20,855,251,918.20x = 31,282,877,877.30 × 18,569,630,465.40
  4. Step 4: Simplify right side
    20,855,251,918.20x = 580,911,482,075,697,774,592
  5. Step 5: Solve for x
    x = 580,911,482,075,697,774,592/20,855,251,918.20
  6. Step 6: Final answer
    x = 27,854,445,698.10

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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.