Home / 1,208,779,600.80-1,813,169,401.20-390,974,570.40

Finding the Fourth Proportional to 1,208,779,600.80, 1,813,169,401.20 and 390,974,570.40

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Solution

The fourth proportional to 1,208,779,600.80, 1,813,169,401.20 and 390,974,570.40 is: 586,461,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,779,600.80 : 1,813,169,401.20 = 390,974,570.40 : x
  2. Step 2: Convert to fraction form
    1,208,779,600.80/1,813,169,401.20 = 390,974,570.40/x
  3. Step 3: Cross multiply
    1,208,779,600.80x = 1,813,169,401.20 × 390,974,570.40
  4. Step 4: Simplify right side
    1,208,779,600.80x = 708,903,127,696,595,200
  5. Step 5: Solve for x
    x = 708,903,127,696,595,200/1,208,779,600.80
  6. Step 6: Final answer
    x = 586,461,855.60

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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.