Home / 20,878,001,031.80-31,317,001,547.70-7,091,712,903.80

Finding the Fourth Proportional to 20,878,001,031.80, 31,317,001,547.70 and 7,091,712,903.80

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Solution

The fourth proportional to 20,878,001,031.80, 31,317,001,547.70 and 7,091,712,903.80 is: 10,637,569,355.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,878,001,031.80 : 31,317,001,547.70 = 7,091,712,903.80 : x
  2. Step 2: Convert to fraction form
    20,878,001,031.80/31,317,001,547.70 = 7,091,712,903.80/x
  3. Step 3: Cross multiply
    20,878,001,031.80x = 31,317,001,547.70 × 7,091,712,903.80
  4. Step 4: Simplify right side
    20,878,001,031.80x = 222,091,183,984,148,676,608
  5. Step 5: Solve for x
    x = 222,091,183,984,148,676,608/20,878,001,031.80
  6. Step 6: Final answer
    x = 10,637,569,355.70

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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.