Home / 1,242,243,031.80-1,863,364,547.70-380,488,049.40

Finding the Fourth Proportional to 1,242,243,031.80, 1,863,364,547.70 and 380,488,049.40

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Solution

The fourth proportional to 1,242,243,031.80, 1,863,364,547.70 and 380,488,049.40 is: 570,732,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,243,031.80 : 1,863,364,547.70 = 380,488,049.40 : x
  2. Step 2: Convert to fraction form
    1,242,243,031.80/1,863,364,547.70 = 380,488,049.40/x
  3. Step 3: Cross multiply
    1,242,243,031.80x = 1,863,364,547.70 × 380,488,049.40
  4. Step 4: Simplify right side
    1,242,243,031.80x = 708,987,942,075,486,208
  5. Step 5: Solve for x
    x = 708,987,942,075,486,208/1,242,243,031.80
  6. Step 6: Final answer
    x = 570,732,074.10

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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.