Finding the Fourth Proportional to 1,319,637,603.52, 1,821,068,129.04 and 732,927,206.08
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Solution
The fourth proportional to 1,319,637,603.52, 1,821,068,129.04 and 732,927,206.08 is: 1,011,421,902.75
Step by Step Solution
- Step 1: Write the proportion equation
1,319,637,603.52 : 1,821,068,129.04 = 732,927,206.08 : x - Step 2: Convert to fraction form
1,319,637,603.52/1,821,068,129.04 = 732,927,206.08/x - Step 3: Cross multiply
1,319,637,603.52x = 1,821,068,129.04 × 732,927,206.08 - Step 4: Simplify right side
1,319,637,603.52x = 1,334,710,375,898,620,160 - Step 5: Solve for x
x = 1,334,710,375,898,620,160/1,319,637,603.52 - Step 6: Final answer
x = 1,011,421,902.75
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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.