Finding the Fourth Proportional to 1,758,238,977.70, 2,637,358,466.55 and 723,842,215.30
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Solution
The fourth proportional to 1,758,238,977.70, 2,637,358,466.55 and 723,842,215.30 is: 1,085,763,322.95
Step by Step Solution
- Step 1: Write the proportion equation
1,758,238,977.70 : 2,637,358,466.55 = 723,842,215.30 : x - Step 2: Convert to fraction form
1,758,238,977.70/2,637,358,466.55 = 723,842,215.30/x - Step 3: Cross multiply
1,758,238,977.70x = 2,637,358,466.55 × 723,842,215.30 - Step 4: Simplify right side
1,758,238,977.70x = 1,909,031,394,967,762,944 - Step 5: Solve for x
x = 1,909,031,394,967,762,944/1,758,238,977.70 - Step 6: Final answer
x = 1,085,763,322.95
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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.