Home / 1,439,089,529.28-1,985,949,888.40-779,039,807.28

Finding the Fourth Proportional to 1,439,089,529.28, 1,985,949,888.40 and 779,039,807.28

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Solution

The fourth proportional to 1,439,089,529.28, 1,985,949,888.40 and 779,039,807.28 is: 1,075,078,365.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,089,529.28 : 1,985,949,888.40 = 779,039,807.28 : x
  2. Step 2: Convert to fraction form
    1,439,089,529.28/1,985,949,888.40 = 779,039,807.28/x
  3. Step 3: Cross multiply
    1,439,089,529.28x = 1,985,949,888.40 × 779,039,807.28
  4. Step 4: Simplify right side
    1,439,089,529.28x = 1,547,134,018,326,873,600
  5. Step 5: Solve for x
    x = 1,547,134,018,326,873,600/1,439,089,529.28
  6. Step 6: Final answer
    x = 1,075,078,365.07

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.