Home / 5,318,779,620.80-7,978,169,431.20-1,637,806,678.40

Finding the Fourth Proportional to 5,318,779,620.80, 7,978,169,431.20 and 1,637,806,678.40

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Solution

The fourth proportional to 5,318,779,620.80, 7,978,169,431.20 and 1,637,806,678.40 is: 2,456,710,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318,779,620.80 : 7,978,169,431.20 = 1,637,806,678.40 : x
  2. Step 2: Convert to fraction form
    5,318,779,620.80/7,978,169,431.20 = 1,637,806,678.40/x
  3. Step 3: Cross multiply
    5,318,779,620.80x = 7,978,169,431.20 × 1,637,806,678.40
  4. Step 4: Simplify right side
    5,318,779,620.80x = 13,066,699,175,826,089,984
  5. Step 5: Solve for x
    x = 13,066,699,175,826,089,984/5,318,779,620.80
  6. Step 6: Final answer
    x = 2,456,710,017.60

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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.