Finding the Fourth Proportional to 518,168,554.64, 715,070,868.66 and 283,219,079.12
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Solution
The fourth proportional to 518,168,554.64, 715,070,868.66 and 283,219,079.12 is: 390,841,379.92
Step by Step Solution
- Step 1: Write the proportion equation
518,168,554.64 : 715,070,868.66 = 283,219,079.12 : x - Step 2: Convert to fraction form
518,168,554.64/715,070,868.66 = 283,219,079.12/x - Step 3: Cross multiply
518,168,554.64x = 715,070,868.66 × 283,219,079.12 - Step 4: Simplify right side
518,168,554.64x = 202,521,712,927,423,648 - Step 5: Solve for x
x = 202,521,712,927,423,648/518,168,554.64 - Step 6: Final answer
x = 390,841,379.92
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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.